Statewide opinion polling for the 2020 Democratic Party presidential primaries

From Wikipedia, the free encyclopedia

This is a list of statewide public opinion polls that have been conducted relating to the Democratic primaries for the 2020 United States presidential election. The persons named in the polls are declared candidates or have received media speculation about their possible candidacy.

Given the large number of potential candidates, the scores of certain low-polling and infrequently-polled candidates have been combined within the "other" column; their exact scores may be viewed by viewing the footnotes associated with each poll. The polls included are among Democrats or Democrats and Democratic-leaning independents, and do not include Republican-leaning independents. The statewide polls are ordered by the scheduled date of the state's primary or caucus. Open-ended polls are included and marked with an asterisk (*), but closed-ended versions of such polls are listed where possible. If multiple versions of polls are provided, the version used for debate qualification is prioritized, then the version among likely voters, then registered voters, then adults.

Key:
  3 or more candidates statistically tied for the lead
  No polling data in the past three months or three months before the election

The Democratic National Committee has determined that candidates may qualify for the first two Democratic primary debates either by polling at 1% or higher in at least three national or early-state (Iowa, New Hampshire, Nevada, and South Carolina) polls sponsored or conducted by designated organizations (in different regions if by the same organization) published after January 1, 2019, up until June 12, 2019, or by a fundraising threshold requiring at least 65,000 unique donors with at least 200 in 20 different states. Should more than 20 candidates meet either threshold, then candidates meeting both thresholds will be given highest priority for entry into the debates, followed by those with the highest polling average and those with the most donors. The pollsters and sponsors of polls designated for consideration by the DNC are the Associated Press, ABC News, CBS News, CNN, The Des Moines Register, Fox News, the Las Vegas Review-Journal, Monmouth University, NBC News, The New York Times, National Public Radio, Quinnipiac University, Reuters, the University of New Hampshire, USA Today, The Wall Street Journal, The Washington Post, and Winthrop University.[1] Open-ended polls do not count towards the polling threshold.[2]

For the third and fourth primary debates, candidates will be required to meet both polling and fundraising thresholds, with the prior considering only polls between June 28 and August 28, 2019, and increased to 4 qualifying polls at 2% support, now excluding surveys sponsored by the Las Vegas Review-Journal and Reuters; the latter requirement has also been increased, to 130,000 unique donors with at least 400 in 20 different states.[3]

Individuals who have been included in national Democratic primary polls but have either ruled out their candidacy or not expressed interest in running include Stacey Abrams, Michael Avenatti, Sherrod Brown, Hillary Clinton, Mark Cuban, Andrew Cuomo, Al Franken, Eric Garcetti, Tim Kaine, Jason Kander, Joe Kennedy III, John Kerry, Mitch Landrieu, Terry McAuliffe, Chris Murphy, Gavin Newsom, Michelle Obama, Howard Schultz, Oprah Winfrey, and Mark Zuckerberg.

Polling in the four early primary states

The following Morning Consult[4] weekly poll archive[5][6][7] graph depicts the evolution of the standing of each candidate in the early primary states (Iowa, New Hampshire, Nevada and South Carolina) since February 2019.

Polling for Super Tuesday

The following Morning Consult[8][9][10][11][12][13][14][15] graph depicts the evolution of the standing of each candidate in the March 3, 2020 Super Tuesday states (Alabama, Arkansas, California, Colorado, Maine, Massachusetts, Minnesota, North Carolina, Oklahoma, Tennessee, Texas, Utah, Vermont, and Virginia) since January 7, 2020.

Primary and caucus calendar

Democratic primary and caucus calendar by scheduled date
  February
  March 3 (Super Tuesday)
  March 10
  March 14–17
  March 24–29
  April 4–17
  April 28
  May
  June–August

The following dates reflect either the confirmed or expected dates of Democratic primaries and caucuses in 2020. Those for contests in U.S. territories with no date yet set are based on dates estimated by The Green Papers based on past years. The pledged delegate numbers listed below are based on the presidential votes in 2008, 2012, and 2016, as well as the number of electoral votes of each state in 2020. The number of DNC members and distinguished party leaders in the count of unpledged PLEO (party leaders and elected officials) delegates is based on the 2016 Democratic National Convention, while the number of unpledged officeholders (governors, members of Congress, and their equivalents in non-state jurisdictions) reflects their current total. The numbers of pledged delegates do not yet account for delegate bonuses or penalties from timing or clustering.[16][17][18]

States listed with a lavender background and an asterisk (*) do not yet have a date set by existing statute. States with a light yellow background and a dagger (†) are set to shift their primary or caucus date following the expected passage of legislation moving the dates of their contests. If not already listed as such, the date to which the contest is expected to be moved is listed in parentheses. Party-run primaries (also described as either a firehouse primary or caucus in some jurisdictions) are listed with two asterisks (**).[16][17][18]

2020 Democratic Primaries and Caucuses
Date State/territory Type Eligibility P U T
Feb 3 Iowa Caucus Closed 41 8 49
Feb 11 New Hampshire Primary Mixed 24 9 33
Feb 22 Nevada Caucus Closed 36 12 48
Feb 29 South Carolina Primary Open 54 9 63
Mar 3 Alabama Primary Open 52 9 61
American Samoa* Caucus Open 6 5 11
Arkansas Primary Open 31 5 36
California Primary Mixed 416 79 495
Colorado Primary Mixed 67 13 80
Maine Primary Closed 24 8 32
Massachusetts Primary Mixed 91 23 114
Minnesota Primary Closed 75 17 92
North Carolina Primary Mixed 110 12 122
Oklahoma Primary Mixed 37 5 42
Tennessee Primary Open 64 9 73
Texas Primary Closed 228 34 262
Utah Primary Mixed 29 6 35
Vermont Primary Open 16 7 23
Virginia Primary Open 99 25 124
Mar 3–10 Democrats Abroad Caucus** Open 13 4 17
Mar 10 Idaho Primary Closed 20 5 25
Michigan Primary Open 125 22 147
Mississippi Primary Open 36 5 41
Missouri Primary Open 68 10 78
North Dakota Caucus** Open 14 4 18
Washington Primary Closed 89 18 107
Mar 14 Northern Marianas* Caucus Closed 6 5 11
Mar 17 Arizona Primary Closed 67 11 78
Florida Primary Closed 219 29 248
Illinois Primary Open 155 29 184
Apr 7 Wisconsin Primary Open 84 13 90
Apr 10 Alaska Primary** Closed 15 4 18
Apr 17 Wyoming Caucus Closed 13 4 17
Apr 28 Ohio Primary Mixed 136 17 153
May 2 Guam* Caucus Closed 7 5 11
Kansas Primary** Closed 39 6 39
May 12 Nebraska Primary Mixed 29 4 29
May 19 Oregon Primary Closed 61 14 66
May 22 Hawaii Primary** Closed 24 9 31
Jun 2 Delaware Primary Closed 21 11 28
District of Columbia† Primary Closed 20 26 43
Indiana Primary Open 82 7 77
Maryland Primary Closed 96 23 102
Montana Primary Open 19 6 22
New Mexico Primary Closed 34 11 40
Pennsylvania Primary Closed 186 23 176
Rhode Island Primary Mixed 26 9 30
South Dakota Primary Mixed 16 5 19
Jun 6 Virgin Islands* Caucus Closed 7 6 13
Jun 9 Georgia Primary Open 105 15 120
West Virginia Primary Mixed 28 6 30
Jun 23 Kentucky Primary Closed 54 6 52
New York† Primary Closed 273 46 270
Jul 7 New Jersey Primary Mixed 126 21 128
Jul 11 Louisiana Primary Closed 54 7 57
Jul 12 Puerto Rico Primary Open 51 8 59
Aug 11 Connecticut Primary Closed 60 15 64
N/A Unassigned – – – 1 1
Total delegates 3,979 765 4,744

Iowa caucus

The Iowa Democratic caucus was held on February 3, 2020.[18]

Sanders, Buttigieg, Warren and Biden campaigning in Iowa throughout the lead up to the caucus
Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Joe
Biden		 Pete
Buttigieg		 Elizabeth
Warren		 Amy
Klobuchar		 Andrew
Yang		 Tom
Steyer		 Other Un-
decided[a]
270 to Win[19] Feb 3, 2020 Jan 22 – Feb 2, 2020 22.6% 18.2% 15.2% 15.6% 11.8% 3.8% 3.6% 3.6%[b] 5.6%
RealClear Politics[20] Feb 3, 2020 Jan 20 – Feb 2, 2020 23.0% 19.3% 16.8% 15.5% 9.0% 3.3% 3.0% 2.5%[c] 7.6%
FiveThirtyEight[21] Feb 3, 2020 until Feb 2, 2020[d] 22.2% 20.7% 15.7% 14.5% 10.1% 3.7% 3.6% 2.9%[e] 6.6%
Average 22.6% 19.4% 15.9% 15.2% 10.3% 3.6% 3.4% 3.0%[f] 6.6%

The results of a final poll from The Des Moines Register were not released as scheduled on February 1, after an interviewee complained that Pete Buttigieg was not given as a poll option during their interview, with the omission reportedly attributed to human error. As the polling firm was unable to determine whether the mistake was an isolated incident or not, pollster Ann Selzer decided to withhold the results of the poll altogether, marking the first time in 76 years that the final pre-caucus poll was not released by the Register.[22][23] The poll was later leaked on Twitter, with results confirmed by FiveThirtyEight showing Sanders in the lead with 22%, followed by Warren with 18%, Buttigieg with 16% and Biden with 13%.[24]

  Debate qualifying poll as designated by the Democratic National Committee
Polling from December 1, 2019, to February 3, 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Pete
Buttigieg		 Tulsi
Gabbard		 Amy
Klobuchar		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Emerson College[25] Jan 30 – Feb 2, 2020 853 (LV) ± 3.3% 21% 15% 1% 11% 28% 4% 14% 5% 2% –
Data for Progress[26] Jan 28 – Feb 2, 2020 2,394 (LV) ± 1.6% 24%[h] 22% – – 28% – 25% – – –
18% 18% 2% 9% 22% 4% 19% 6% 2%[i] –
YouGov/CBS News[27] (MRP) Jan 22–31, 2020 1,835 (RV) ± 3% 25% 21% [j] 5% 25% [j] 16% [j] [j] [j]
David Binder Research/Focus on Rural America[28] Jan 28–30, 2020 300 (LV) ± 5.7% 46%[k] – – – 40% – – – – 14%
15% 19% 3% 11% 17% 3% 15% 1% 2%[l] 12%
American Research Group[29] Jan 27–30, 2020 400 (LV) ± 4.0% 17% 9% 2% 16% 23% 3% 15% 5% 4%[m] 6%
Civiqs/Data for Progress[30] Jan 26–29, 2020 615 (LV) ± 4.7% 20%[n] 18% 1% 0% 31% 2% 25% 1% 1%[o] 2%
15% 15% 2% 8% 28% 2% 21% 5% 0%[p] 2%
Park Street Strategies[31] Jan 24–28, 2020 600 (LV) ± 3.0% 20% 17% 1% 12% 18% 4% 17% 5% <1%[q] 6%
Monmouth University[32] Jan 23–27, 2020 544 (LV) ± 4.2% 29%[r] 20% – – 25% – 19% – 1%[s] 6%
22%[t] 17% – 12% 22% – 16% 5% <1%[u] 6%
23% 16% 1% 10% 21% 4% 15% 3% 1%[v] 5%
Civiqs/Iowa State University[33] Jan 23–27, 2020 655 (LV) ± 4.8% 15% 17% 2% 11% 24% 4% 19% 5% 2%[w] 3%[x]
Emerson College[34] Jan 23–26, 2020 450 (LV) ± 4.6% 21% 10% 5% 13% 30% 5% 11% 5% 2%[y] –
Suffolk University/USA Today[35] Jan 23–26, 2020 500 (LV) ± 4.4% 25.4% 17.6% 0.8% 5.6% 18.6% 2.2% 13.2% 3.0% 13.6%[z] –
Change Research/Crooked Media[36] Jan 22–26, 2020 704 (LV) ± 3.7% 22%[aa] 23% – – 30% – 20% – – 5%
18% 19% 1% 10% 27% 4% 15% 4% 2%[ab] –
Siena College/New York Times[37] Jan 20–23, 2020 584 (LV) ± 4.8% 23%[ac] 23% – – 30% – 19% – – 8%[ad]
17% 18% 1% 8% 25% 3% 15% 3% 1%[ae] 8%
Morningside College[38] Jan 17–23, 2020 253 (LV) ± 6.2% 19% 18% 3% 12% 15% 6% 15% 4% 2%[af] 4%
YouGov/CBS News[39] Jan 16–23, 2020 1401 (RV) ± 3.9% 25% 22% 0% 7% 26% 1% 15% 1% 2%[ag] 1%
Civiqs/Data for Progress[40] Jan 19–21, 2020 590 (LV) ± 4.8% 17% 19% 2% 6% 24% 3% 19% 5% 0%[ah] 5%
David Binder Research/Focus on Rural America[41] Jan 15–18, 2020 500 (LV) ± 4.4% 24% 16% 1% 11% 14% 4% 18% 3% 2%[ai] –
Neighbourhood Research and Media/Breitbart[42] Jan 14–17, 2020 300 (LV) ± 4.8% 23% 17% –[aj] 11% 10% 2% 15% 2% 6%[ak] 13%
Jan 13, 2020 Booker withdraws from the race
Monmouth University[43] Jan 9–12, 2020 405 (LV) ± 4.9% 28%[al] 25% – – 24% – 16% – 2%[am] 4%
24% 17% 2% 8% 18% 4% 15% 4% 4%[an] 5%
Selzer/CNN/Des Moines Register[44] January 2–8, 2020 701 (LV) ± 3.7% 15% 16% 2% 6% 20% 2% 17% 5% 2%[ao] 11%
YouGov/CBS News[45] Dec 27, 2019 – Jan 3, 2020 953 (RV) ± 3.8% 23% 23% 1% 7% 23% 2% 16% 2% 2%[ap] 1%
KG Polling[46] Dec 19–23, 2019 750 (LV) ± 3.8% 24% 12% – 5% 31% – 13% 10% – 5%[aq]
Civiqs/Iowa State University[47] Dec 12–16, 2019 632 (LV) ± 4.9% 15% 24% 3% 4% 21% 2% 18% 3% 4%[ar] 4%
Emerson College[48] Dec 7–10, 2019 325 (LV) ± 5.4% 23% 18% 2% 10% 22% 3% 12% 2% 8%[as] –
Dec 3, 2019 Harris withdraws from the race
Polling during November 2019
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Pete
Buttigieg		 Tulsi
Gabbard		 Kamala
Harris		 Amy
Klobuchar		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Civiqs/Iowa State University[49] Nov 15–19, 2019 614 (LV) ± 4.9% 12% 26% 2% 2% 5% 18% 2% 19% 4% 6%[at] 3%
Des Moines Register/CNN[50] Nov 8–13, 2019 500 (LV) ± 4.4% 15% 25% 3% 3% 6% 15% 3% 16% 3% 6%[au] 5%
YouGov/CBS News[51] Nov 6–13, 2019 856 (RV) ± 4.1% 22% 21% 0% 5% 5% 22% 2% 18% 1% 4%[av] –
Monmouth University[52] Nov 7–11, 2019 451 (LV) ± 4.6% 19% 22% 2% 3% 5% 13% 3% 18% 3% 6%[aw] 8%
University of Iowa[53] Oct 28 – Nov 10, 2019 465 (LV) ± 4.6% 15% 16% 3% 2% 1% 18% 3% 23% 3% 2%[ax] 13%
Public Policy Polling[54] Nov 5–6, 2019 715 (LV) – 13% 20% – 3% 9% 14% 6% 21% 3% – 10%
Quinnipiac University[55] Oct 30 – Nov 5, 2019 698 (LV) ± 4.5% 15% 19% 3% 4% 5% 17% 3% 20% 3% 4%[ay] 8%
Nov 1, 2019 O'Rourke withdraws from the race
Polling before November 2019
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Siena College/New York Times[56] Oct 25–30, 2019 439 (LV) ± 4.7% 17% 2% 18% 3% 4% 1% 19% 22% 8%[az] 6%
Civiqs/Iowa State University[57] Oct 18–22, 2019 598 (LV) ± 5% 12% 1% 20% 3% 4% 1% 18% 28% 8%[bb] 4%
Suffolk University/USA Today[58] Oct 16–18, 2019 500 (LV) ± 4.4% 18% 1% 13% 3% 3% 1% 9% 17% 7%[bc] 29%
Emerson College[59] Oct 13–16, 2019 317 (LV) ± 5.5% 23% 3% 16% 2% 1% 0% 13% 23% 15%[bd] –
Firehouse Strategies/Øptimus[60] Oct 8–10, 2019 548 (LV) ± 3.6% 22% 2% 17% 3% –[be] 1% 5% 25% 26%[bf] –[be]
YouGov/CBS News[61] Oct 3–11, 2019 729 (RV) ± 4.6% 22% 2% 14% 5% 2% 2% 21% 22% 7%[bg] –
Selzer/CNN/Des Moines Register[62] Sep 14–18, 2019 602 (LV) ± 4.0% 20% 3% 9% 6% 3% 2% 11% 22% 11%[bh] 14%
David Binder Research[63] Sep 14–17, 2019 500 (LV) ± 4.4% 25% 2% 12% 5% 8% 1% 9% 23% 9%[bi] 6%
Civiqs/Iowa State University[64] Sep 13–17, 2019 572 (LV) ± 5.2% 16% 2% 13% 5% 3% 2% 16% 24% 11%[bj] 8%
YouGov/CBS News[65] Aug 28 – Sep 4, 2019 835 ± 4.3% 29% 2% 7% 6% 2% 2% 26% 17% 9%[bk] –
Change Research[66] Aug 9–11, 2019 621 (LV) ± 3.9% 17% 3% 13% 8% 2% 3% 17% 28% 9%[bl] –
Monmouth University[67] Aug 1–4, 2019 401 (LV) ± 4.9% 28% 1% 8% 11% 3% <1% 9% 19% 11%[bm] 10%
Firehouse Strategies/Øptimus[68] Jul 23–25, 2019 630 ± 3.3% 23% 2% 7% 12% – 2% 11% 23% 4% 16%
YouGov/CBS News[69] Jul 9–18, 2019 706 ± 4.4% 24% 3% 7% 16% 4% 1% 19% 17% 9%[bn] –
Jul 9, 2019 Steyer announces his candidacy
Change Research[70] Jun 29 – Jul 4, 2019 420 (LV) – 16% 1% 25% 16% 1% 2% 16% 18% 5%[bo] –
David Binder Research[71] Jun 29 – Jul 1, 2019 600 ± 4.0% 17% 2% 10% 18% 4% 1% 12% 20% 9%[bp] 9%
Suffolk University/USA Today[72] Jun 28 – Jul 1, 2019 500 ± 4.4% 24% 2% 6% 16% 2% 1% 9% 13% 6%[bq] 21%
Change Research[73] Jun 17–20, 2019 308 (LV) – 27% 5% 17% 4% 2% 1% 18% 20% 7%[br] –
Selzer/CNN/Des Moines Register[74] Jun 2–5, 2019 600 ± 4.0% 24% 1% 14% 7% 2% 2% 16% 15% 6%[bs] 6%
Change Research[75] May 15–19, 2019 615 (LV) ± 3.9% 24% 1% 14% 10% 2% 5% 24% 12% 9%[bt] –
Firehouse Strategies/Øptimus[76] Apr 30 – May 2, 2019 576 ± 4.1% 35% 2% 11% 5% 4% 3% 14% 10% – 16%
Apr 25, 2019 Biden announces his candidacy
Gravis Marketing[77] Apr 17–18, 2019 590 ± 4.0% 19% 4% 14% 6% 4% 5% 19% 6% 7%[bu] 16%
Apr 14, 2019 Buttigieg announces his candidacy
Monmouth University[78] Apr 4–9, 2019 351 ± 5.2% 27% 3% 9% 7% 4% 6% 16% 7% 7%[bv] 12%
David Binder Research[79] Mar 21–24, 2019 500 ± 4.4% 25% 7% 6% 9% 6% 6% 17% 8% 9%[bw] 7%
Emerson College[80] Mar 21–24, 2019 249 ± 6.2% 25% 6% 11% 10% 2% 5% 24% 9% 8%[bx] –
Public Policy Polling (D)[81][by] Mar 14–15, 2019 678 – 29% 4% – 5% 6% 7% 15% 8% 4% 22%
Mar 14, 2019 O'Rourke announces his candidacy
Selzer/CNN/Des Moines Register[82] Mar 3–6, 2019 401 ± 4.9% 27% 3% 1% 7% 3% 5% 25% 9% 5%[bz] 10%
Feb 19, 2019 Sanders announces his candidacy
Feb 10, 2019 Klobuchar announces her candidacy
Feb 9, 2019 Warren announces her candidacy
Firehouse Strategies/Øptimus[83] Jan 31 – Feb 2, 2019 558 ± 3.6% 25% 4% – 17% 5% 4% 10% 11% 1%[ca] 25%
Emerson College[84] Jan 30 – Feb 2, 2019 260 ± 6.0% 29% 4% 0% 18% 3% 6% 15% 11% 15%[cb] –
Feb 1, 2019 Booker announces his candidacy
Jan 21, 2019 Harris announces her candidacy
Jan 11, 2019 Gabbard announces her candidacy
Change Research[85] Dec 13–17, 2018 1,291 (LV) – 20% 4% – 7% 5% 19% 20% 7% 18%[cc] –
Selzer/CNN/Des Moines Register[86] Dec 10–13, 2018 455 ± 4.6% 32% 4% – 5% 3% 11% 19% 8% 7%[cd] 6%
David Binder Research[87] Dec 10–11, 2018 500 ± 4.4% 30% 6% – 7% 10% 11% 13% 9% 8%[ce] 6%
David Binder Research[88] Sep 20–23, 2018 500 ± 4.4% 37% 8% – 10% – – 12% 16% 6%[cf] 9%
Nov 6, 2017 Yang announces his candidacy
Public Policy Polling (D)[89][cg] Mar 3–6, 2017 1,062 – – 17% – 3% 11% – – – 34%[ch] 32%

New Hampshire primary

The New Hampshire Democratic primary was held on February 11, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Pete
Buttigieg		 Elizabeth
Warren		 Joe
Biden		 Amy
Klobuchar		 Andrew
Yang		 Tulsi
Gabbard		 Tom
Steyer		 Other Un-
decided[a]
270 to Win[90] Feb 10, 2020 Feb 4–9, 2020 27.3% 20.9% 13.1% 12.3% 10.3% 3.0% 2.7% 2.1% 1.9%[ci] 6.4%
RealClear Politics[91] Feb 10, 2020 Feb 6–9, 2020 28.7% 21.3% 11.0% 11.0% 11.7% 3.7% 3.3% 1.7% 1.3%[cj] 6.3%
FiveThirtyEight[92] Feb 10, 2020 until Feb 10, 2020[d] 26.0% 21.6% 12.5% 11.7% 10.3% 3.0% 2.9% 2.6% 3.5%[ck] 5.8%
Average 27.3% 21.3% 12.2% 11.7% 10.8% 3.2% 3.0% 2.1% 2.2%[cl] 6.2%
New Hampshire primary results (February 11, 2020) 25.6% 24.3% 9.2% 8.4% 19.7% 2.8% 3.3% 3.6% 2.7%[cm] –
   – Debate qualifying poll as designated by the Democratic National Committee
Polling from January 1, 2020, to February 11, 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Pete
Buttigieg		 Tulsi
Gabbard		 Amy
Klobuchar		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
New Hampshire primary (popular vote) Feb 11, 2020 – – 8.4% 24.3% 3.3% 19.7% 25.6% 3.6% 9.2% 2.8% 2.7%[cn] –
AtlasIntel[93] Feb 8–10, 2020 431 (LV) ± 5.0% 12% 24% 3% 14% 24% 1% 11% 5% – 6%
Data For Progress[94][co] Feb 7–10, 2020 1296 (LV) ± 2.7% 9% 26% 3% 13% 28% 3% 14% 5% – –
American Research Group[95] Feb 8–9, 2020 400 (LV) – 13% 20% 3% 13% 28% 2% 11% 3% 5%[cp] 2%
Emerson College/WHDH[96] Feb 8–9, 2020 500 (LV) ± 4.3% 10% 23% 2% 14% 30% 2% 11% 4% 4%[cq] –
Change Research[97] Feb 8–9, 2020 662 (LV) ± 3.8% 9% 21% 6% 8% 30% 3% 8% 5% 1%[cr] 9%
Suffolk University/Boston Globe/WBZ-TV[98] Feb 8–9, 2020 500 (LV) ± 4.4% 12% 19% 3% 14% 27% 2% 12% 3% 3%[cs] 7%
Elucd[99] Feb 7–9, 2020 492 (LV) ± 4.4% 8% 20% –[ct] 12% 26% –[cu] 10% –[cv] –[cw] 15%
University of New Hampshire/CNN[100] Feb 6–9, 2020 365 (LV) ± 5.1% 11% 22% 5% 7% 29% 1% 10% 4% 1%[cx] 10%
Emerson College/WHDH[101] Feb 7–8, 2020 500 (LV) ± 4.3% 11% 20% 3% 13% 30% 2% 12% 4% 4%[cy] –
Suffolk University/Boston Globe/WBZ-TV[102] Feb 7–8, 2020 500 (LV) ± 4.4% 10% 22% 2% 9% 24% 2% 13% 3% 3%[cz] 12%
Boston Herald/FPU/NBC10[103] Feb 5–8, 2020 512 (LV) – 14% 20% 0% 6% 23% 2% 16% 3% 3%[da] 13%
YouGov/CBS News[104] Feb 5–8, 2020 848 (LV) ± 4.3% 12% 25% 2% 10% 29% 1% 17% 1% 3%[db] –
University of New Hampshire/CNN[105] Feb 5–8, 2020 384 (LV) ± 5.0% 12% 21% 5% 6% 28% 2% 9% 4% 2%[dc] 11%
Emerson College/WHDH[106] Feb 6–7, 2020 500 (LV) ± 4.3% 11% 24% 5% 9% 31% 2% 11% 3% 3%[dd] –
Suffolk University/Boston Globe/WBZ-TV[107] Feb 6–7, 2020 500 (LV) ± 4.4% 11% 25% 2% 6% 24% 2% 14% 3% 4%[de] 9%
University of Massachusetts Lowell[108] Feb 4–7, 2020 440 (LV) ± 6.5% 14% 17% 4% 8% 25% 5% 15% 3% 5%[df] 4%
University of New Hampshire/CNN[109] Feb 4–7, 2020 365 (LV) ± 5.1% 11% 21% 6% 5% 28% 3% 9% 3% 3%[dg] 11%
Emerson College/WHDH[110] Feb 5–6, 2020 500 (LV) ± 4.3% 11% 23% 6% 9% 32% 2% 13% 2% 3%[dh] –
Suffolk University/Boston Globe/WBZ-TV[111] Feb 5–6, 2020 500 (LV) ± 4.4% 11% 23% 4% 6% 24% 3% 13% 3% 4%[di] 12%
Marist/NBC News[112] Feb 4–6, 2020 709 (LV) ± 4.7% 13% 21% 3% 8% 25% 4% 14% 4% 3%[dj] 5%
Suffolk University/Boston Globe/WBZ-TV[113] Feb 4–5, 2020 500 (LV) ± 4.4% 12% 19% 5% 6% 25% 4% 11% 2% 1%[dk] 15%
Monmouth University[114] Feb 3–5, 2020 503 (LV) ± 4.4% 17% 20% 4% 9% 24% 3% 13% 4% 2%[dl] 5%
17%[dm] 22% – 13% 27% – 13% – 3%[dn] 4%
19%[do] 28% – – 28% – 16% – 3%[dp] 5%
Emerson College/WHDH[115] Feb 3–5, 2020 500 (LV) ± 4.3% 12% 21% 5% 11% 31% 1% 12% 4% 2%[dq] –
Suffolk University/Boston Globe/WBZ-TV[116] Feb 3–4, 2020 500 (LV) ± 4.4% 15% 15% 5% 6% 24% 5% 10% 3% 1%[dr] 14%
Emerson College/WHDH[117] Feb 2–4, 2020 500 (LV) ± 4.3% 13% 17% 6% 11% 32% 2% 11% 6% 3%[ds] –
Feb 3, 2020 Iowa caucuses
Suffolk University/Boston Globe/WBZ-TV[118] Feb 2–3, 2020 500 (LV) ± 4.4% 18% 11% 5% 6% 24% 4% 13% 3% 3%[dt] 14%
Emerson College/WHDH[119] Feb 1–3, 2020 500 (LV) ± 4.3% 13% 12% 4% 12% 32% 5% 13% 5% 4%[du] –
Emerson College/WHDH[120] Jan 31 – Feb 2, 2020 500 (LV) ± 4.3% 14% 13% 7% 8% 29% 8% 12% 7% 2%[dv] –
Saint Anselm College[121] Jan 29 – Feb 2, 2020 491 (LV) ± 4.4% 19% 14% 3% 11% 19% 5% 11% 4% 2%[dw] 11%
Boston Herald/FPU/NBC10[122] Jan 29 – Feb 1, 2020 454 (LV) ± 4.6% 24% 8% 3% 4% 31% No voters 17% 1% 5%[dx] 7%
University of Massachusetts Lowell[123] Jan 28–31, 2020 400 (LV) ± 6.4% 22% 12% 5% 6% 23% 6% 19% 2% 1%[dy] 4%
YouGov/UMass Amherst/WCVB[124] Jan 17–29, 2020 500 (LV) ± 5.3% 20% 12% 5% 5% 25% 5% 17% 4% 2%[dz] 3%
American Research Group[125] Jan 24–27, 2020 600 (LV) ± 4% 13% 12% 8% 7% 28% 2% 11% 5% 8%[ea] 6%
Boston Herald/FPU/NBC10[122] Jan 23–26, 2020 407 (LV) ± 4.9% 22% 10% 3% 5% 29% 0% 16% 1% 7%[eb] 9%
Marist/NBC News[126] Jan 20–23, 2020 697 (LV) ± 4.5% 15% 17% 6% 10% 22% 3% 13% 5% 2%[ec] 7%
University of New Hampshire/CNN[127] Jan 15–23, 2020 516 (LV) ± 4.3% 16% 15% 5% 6% 25% 2% 12% 5% 2%[ed] 10%
MassINC Polling Group/WBUR[128] Jan 17–21, 2020 426 (LV) ± 4.8% 14% 17% 5% 6% 29% 2% 13% 5% 4%[ee] 5%[ef]
Suffolk University/Boston Globe[129] Jan 15–19, 2020 500 (LV) ± 4.4% 15% 12% 5% 5% 16% 3% 10% 6% 3%[eg] 24%
Emerson College/WHDH[130] Jan 13–16, 2020 657 (LV) ± 3.8% 14% 18% 5% 10% 23% 4% 14% 6% 7%[eh] –
Jan 13, 2020 Booker withdraws from the race
Boston Herald/FPU/NBC10[131] Jan 8–12, 2020 434 (LV) – 26% 7% 4% 2% 22% 2% 18% 2% 7%[ei] 12%
Patinkin Research Strategies/Yang 2020[132][ej] Jan 5–7, 2020 600 (LV) ± 4% 21% 17% 7% 6% 19% 6% 10% 5% 3%[ek] 7%
Monmouth University[133] Jan 3–7, 2020 404 (LV) ± 4.9% 19% 20% 4% 6% 18% 4% 15% 3% 3%[el] 7%
21%[em] 20% – 7% 21% – 15% 5% 5%[en] 8%
24%[eo] 23% – – 21% – 18% – 5%[ep] 8%
YouGov/CBS News[134] Dec 27, 2019 –
Jan 3, 2020		 487 (LV) ± 5.3% 25% 13% 1% 7% 27% 3% 18% 2% 3%[eq] –
Polling before January 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Tulsi
Gabbard		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Deval
Patrick		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
MassINC Polling Group/WBUR[135] Dec 3–8, 2019 442 (LV) ± 4.7% 17% 1% 18% 5% – 3% – <1% 15% 12% 5% 11%[er] 12%[es]
Dec 3, 2019 Harris withdraws from the race
Emerson College[136] Nov 22–26, 2019 549 (LV) ± 4.1% 14% 2% 22% 6% 4% 2% – 0% 26% 14% 5% 7%[et] –
Boston Globe/Suffolk University[137] Nov 21–24, 2019 500 (LV) – 12% 2% 13% 6% 3% 1% – 1% 16% 14% 4% 6%[eu] 21%
Saint Anselm College[138] Nov 13–18, 2019 255 (RV) ± 6.1% 15% 3% 25% 3% 1% 6% – 0% 9% 15% 2% 5%[ev] 13%
Nov 14, 2019 Patrick announces his candidacy
YouGov/CBS News[139] Nov 6–13, 2019 535 (RV) ± 5% 22% 1% 16% 0% 3% 3% – – 20% 31% 1% 1%[ew] –
Quinnipiac University[140] Nov 6–10, 2019 1,134 (LV) ± 3.8 20% 1% 15% 6% 1% 3% – – 14% 16% 4% 5%[ex] 14%
Nov 1, 2019 O'Rourke withdraws from the race
University of New Hampshire/CNN[141] Oct 21–27, 2019 574 (LV) ± 4.1% 15% 2% 10% 5% 3% 5% 2% – 21% 18% 5% 4%[ey] 10%
Boston Herald/FPU[142] Oct 9–13, 2019 422 (LV) ± 4.8% 24% 2% 9% 1% 4% 2% 0% – 22% 25% 1% 4%[ez] 7%
Firehouse Strategies/Øptimus[143] Oct 8–10, 2019 610 (LV) ± 3.7% 18% 2% 7% –[fa] 2% –[fa] 1% – 9% 25% 2% 32% –[fa]
YouGov/CBS News[144] Oct 3–11, 2019 506 ± 5.4% 24% 1% 7% 2% 4% 2% 1% – 17% 32% 5% 5%[fb] –
Saint Anselm College[145] Sep 25–29, 2019 423 ± 4.8% 24% 1% 10% 3% 5% 3% <1% – 11% 25% 2% 3%[fc] 9%
Monmouth University[146] Sep 17–21, 2019 401 ± 4.9% 25% 2% 10% 2% 3% 2% 1% – 12% 27% 2% 3%[fd] 9%
HarrisX/No Labels[147] Sep 6–11, 2019 595 ± 4.0% 22% 3% 5% 6% 5% 1% 1% – 21% 15% 2% 5%[fe] 14%
Boston Herald/FPU[148] Sep 4–10, 2019 425 ± 4.8% 21% 1% 5% 3% 6% 1% 2% – 29% 17% 5% 2%[ff] 9%
Emerson College[149] Sep 6–9, 2019 483 ± 4.4% 24% 4% 11% 6% 8% 1% 1% – 13% 21% 3% 7%[fg] –
YouGov/CBS News[150] Aug 28 – Sep 4, 2019 526 ± 5.2% 26% 2% 8% 1% 7% 1% 1% – 25% 27% 1% 1%[fh] –
Gravis Marketing[151] Aug 2–6, 2019 250 ± 6.2% 15% 0% 8% 5% 7% 4% 2% – 21% 12% 4% 8%[fi] 11%
Suffolk University[152] Aug 1–4, 2019 500 ± 4.4% 21% 1% 6% 3% 8% 1% 0% – 17% 14% 1% 6%[fj] 21%
Firehouse Strategies/Øptimus[153] Jul 23–25, 2019 587 ± 3.3% 21% 1% 8% – 13% – 0% – 13% 16% 1% 7% 19%
YouGov/CBS News[154] Jul 9–18, 2019 530 ± 5% 27% 1% 7% 2% 12% 1% 2% – 20% 18% 1% 5%[fk] –
University of New Hampshire/CNN[155] Jul 8–15, 2019 386 ± 5.0% 24% 2% 10% 1% 9% 0% 2% – 19% 19% 1% 4%[fl] 9%
Saint Anselm College[156] Jul 10–12, 2019 351 ± 5.2% 21% 1% 12% 1% 18% 3% 0% – 10% 17% 5% 3%[fm] 11%
Change Research[157] Jul 6–9, 2019 1,084 ± 3.0% 19% 1% 13% 3% 15% 1% 1% – 20% 22% 1% 3%[fn] –
Change Research[158] Jun 29 – Jul 4, 2019 420 – 13% 2% 14% 2% 13% 1% 2% – 26% 24% 2% 4%[fo] –
Change Research[159] Jun 17–20, 2019 308 – 24% 0% 14% 1% 3% 1% 4% – 28% 21% 1% 3%[fp] –
YouGov/CBS News[160] May 31 – Jun 12, 2019 502 ± 4.9% 33% 3% 10% 0% 7% 1% 4% – 20% 17% 1% 2%[fq] –
Tel Opinion Research[161]* May 20–22, 2019 600 ± 4.0% 33% – 7% – 7% – 1% – 12% 11% – – 28%
Monmouth University[162] May 2–7, 2019 376 ± 5.1% 36% 2% 9% 0% 6% 2% 2% – 18% 8% 1% 2%[fr] 11%
Change Research[163] May 3–5, 2019 864 ± 3.3% 26% 2% 12% 1% 8% 1% 3% – 30% 9% 2% 4%[fs] –
Firehouse Strategies/Øptimus[164] Apr 30 – May 2, 2019 551 ± 4.0% 34% 1% 10% – 7% 1% 3% – 16% 9% – – 19%
Suffolk University[165] Apr 25–28, 2019 429 ± 4.7% 20% 3% 12% 1% 6% 1% 3% – 12% 8% 1% 4%[ft] 27%
Apr 25, 2019 Biden announces his candidacy
University of New Hampshire[166] Apr 10–18, 2019 241 ± 6.3% 18% 3% 15% 1% 4% 2% 3% – 30% 5% 2% 5%[fu] 12%
Apr 14, 2019 Buttigieg announces his candidacy
Saint Anselm College[167] Apr 3–8, 2019 326 ± 5.4% 23% 4% 11% 1% 7% 2% 6% – 16% 9% – 9%[fv] 13%
Mar 14, 2019 O'Rourke announces his candidacy
University of New Hampshire[168] Feb 18–26, 2019 240 ± 6.3% 22% 3% 1% 1% 10% 4% 5% – 26% 7% – 6%[fw] 14%
Emerson College[169] Feb 21–22, 2019 405 ± 4.8% 25% 5% 1% – 12% 8% 5% – 27% 9% – 10%[fx] –
Feb 19, 2019 Sanders announces his candidacy
YouGov/UMass Amherst[170] Feb 7–15, 2019 337 ± 6.4% 28% 3% – – 14% 1% 6% – 20% 9% – 9%[fy] 9%
Feb 10, 2019 Klobuchar announces her candidacy
Feb 9, 2019 Warren announces her candidacy
Firehouse Strategies/Øptimus[171] Jan 31 – Feb 2, 2019 518 ± 4.1% 22% 4% – – 13% 2% 2% – 13% 9% – 0%[fz] 35%
Feb 1, 2019 Booker announces his candidacy
Jan 21, 2019 Harris announces her candidacy
Jan 11, 2019 Gabbard announces her candidacy
Change Research[172] Jan 2–3, 2019 1,162 – 24% 3% – – 4% 2% 9% – 26% 11% – 22%[ga] –
University of New Hampshire[173] Aug 2–19, 2018 198 ± 7.0% 19% 6% – – 3% – – – 30% 17% – 12%[gb] 12%
Suffolk University[174] Apr 26–30, 2018 295 ± 5.7% 20% 8% – – 4% – – 4% 13% 26% – 4%[gc] 18%
30% 10% – – 6% – – 8% 25% – – 6%[gd] 12%
University of New Hampshire[175] Apr 13–22, 2018 188 ± 7.1% 26% 5% – – 6% 1% – – 28% 11% – 9%[ge] 13%
University of New Hampshire[176] Jan 28 – Feb 10, 2018 219 ± 6.6% 35% 3% – – 1% 0% – – 24% 15% – 7%[gf] 15%
Nov 6, 2017 Yang announces his candidacy
University of New Hampshire[177] Oct 3–15, 2017 212 ± 6.7% 24% 6% – – 1% 1% – – 31% 13% – 14%[gg] 11%
Head-to-head polls
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Pete
Buttigieg		 Bernie
Sanders		 Elizabeth
Warren		 Undecided
Tel Opinion Research[161] May 20–22, 2019 600 ± 4.0% 63% 21% – – 15%
66% – 22% – 13%
58% – – 29% 13%
American Research Group[178] Mar 21–27, 2018 400 ± 5.0% 47% – 45% – 7%
58% – – 33% 8%

Nevada caucus

The Nevada Democratic caucus was held on February 22, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Joe
Biden		 Pete
Buttigieg		 Elizabeth
Warren		 Tom
Steyer		 Amy
Klobuchar		 Others Undecided[a]
270 to Win[179] Feb 21, 2020 Feb 14–21, 2020 30.0% 16.7% 14.0% 13.7% 9.7% 9.7% 1.3%[gh] 4.9%
RealClear Politics[180] Feb 21, 2020 Feb 19–21, 2020 32.5% 16.0% 16.0% 14.0% 9.0% 9.5% 2.0%[gi] 1.0%
FiveThirtyEight[181] Feb 21, 2020 until Feb 21, 2020[d] 30.5% 14.4% 15.3% 11.8% 10.2% 8.9% 11.0%[gj] –[gk]
Average 31.0% 15.7% 15.1% 13.2% 9.6% 9.4% 4.7%[gl] 2.0%
Nevada caucus results, first alignment (February 22, 2020) 34.0% 17.6% 15.4% 12.8% 9.1% 9.6% 1.5%[gm] –
   – Debate qualifying poll as designated by the Democratic National Committee
Tabulation of individual polls of the 2020 Nevada Democratic Caucus
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Nevada caucuses (first alignment vote) Feb 22, 2020 – – 17.6% – 15.4% – 9.6% – 34% 9.1% 12.8% 0.6% 1%[gn] –
Data for Progress[182][go] Feb 19–21, 2020 1010 (LV) ± 2.8% 16% – 15% – 8% – 35% 8% 16% – 2%[gp] –
AtlasIntel[183] Feb 19–21, 2020 517 (LV) ± 4.0% 11% – 14% – 5% – 38% 11% 9% – 7%[gq] 5%
Emerson College[184] Feb 19–20, 2020 425 (LV) ± 4.7% 16% – 17% – 11% – 30% 10% 12% – 4%[gr] –
Feb 15–18, 2020 Early voting occurred in the Nevada caucuses[185]
Point Blank Political[186] Feb 13–15, 2020 256 (LV) ± 5.6% 14.3% – 12.6% – 15.6% – 13% 18.6% 7.1% – 1.7%[gs] 17.1%
Beacon Research/Tom Steyer[187] Feb 12–15, 2020 600 (LV) – 19% – 13% – 7% – 24% 18% 10% – 4%[gt] 6%
Data for Progress[188][gu] Feb 12–15, 2020 766 (LV) ± 3.4% 14% – 15% – 9% – 35% 10% 16% – 2%[gv] –
WPA Intelligence/Las Vegas Review-Journal/AARP Nevada[189] Feb 11–13, 2020 413 (LV) ± 4.8% 18% – 10% – 10% – 25% 11% 13% – 5%[gw] 8%
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
Jan 13, 2020 Booker withdraws from the race
Suffolk University/USA Today[190] Jan 8–11, 2020 500 (LV) ± 4.4% 19% 2% 8% – 4% – 18% 8% 11% 4% 4%[gx] 22%
https://www.yang2020.com/wp-content/uploads/Myers-Research-Nevada.pdf Archived January 11, 2020, at the Wayback Machine Jan 5–8, 2020 635 ± 4.0% 23% 3% 6% – 2% – 17% 12% 12% 4% 13%[gy] 6%
Dec 3, 2019 Harris withdraws from the race
YouGov/CBS News[191] Nov 6–13, 2019 708 (RV) ± 4.7% 33% 2% 9% 4% 2% – 23% 2% 21% 1% 2%[gz] –
Fox News[192] Nov 10–13, 2019 627 ± 4.0% 24% 1% 8% 4% 2% – 18% 5% 18% 3% 4%[ha] 10%
Emerson Polling[193] Oct 31 – Nov 2, 2019 451 (LV) ± 4.6% 30% 1% 5% 5% 1% – 19% 3% 22% 5% 10%[hb] –
Mellman Group/The Nevada Independent[194] Oct 28 – Nov 2, 2019 600 (LV) ± 4.0% 29% 1% 7% 3% 3% 0% 19% 4% 19% 3% 3%[hc] 9%
Nov 1, 2019 O'Rourke withdraws from the race
CNN/SSRS[195] Sep 22–26, 2019 324 (LV) ± 7.1% 22% 2% 4% 5% 1% 0% 22% 4% 18% 3% 3%[hd] 13%
Suffolk University/USA Today[196] Sep 19–23, 2019 500 (LV) – 23% 2% 3% 4% 0% 1% 14% 3% 19% 3% 4%[he] 21%
YouGov/CBS News[197] Aug 28 – Sep 4, 2019 563 (LV) ± 4.9% 27% 1% 4% 6% 0% 3% 29% 2% 18% 1% 9%[hf] –
Gravis Marketing[198] Aug 14–16, 2019 382 (RV) ± 5.0% 25% 3% 5% 9% 2% 0% 10% 6% 15% 2% 13%[hg] 9%
Change Research[199] Aug 2–8, 2019 439 (LV) ± 4.7% 26% 0% 7% 10% 1% 2% 22% 3% 23% 1% 5%[hh] –
Morning Consult[200] Jul 1–21, 2019 749 (RV) ± 4.0% 29% 3% 6% 11% 1% 3% 23% 1% 12% 3% 10%[hi] –
Jul 9, 2019 Steyer announces his candidacy
Monmouth University[201] Jun 6–11, 2019 370 (LV) ± 5.1% 36% 2% 7% 6% 1% 2% 13% – 19% 2% 3%[hj] 8%
Change Research[202] May 9–12, 2019 389 (LV) – 29% 2% 13% 11% 1% 4% 24% – 12% 1% 4%[hk] –
Apr 25, 2019 Biden announces his candidacy
Apr 14, 2019 Buttigieg announces his candidacy
Emerson College[203] Mar 28–30, 2019 310 (LV) ± 5.5% 26% 2% 5% 9% 2% 10% 23% – 10% 3% 9%[hl] –

South Carolina primary

The South Carolina Democratic primary was held on February 29, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Tom
Steyer		 Pete
Buttigieg		 Elizabeth
Warren		 Amy
Klobuchar		 Tulsi
Gabbard		 Un-
decided[hm]
270 to Win[204] Feb 28, 2020 Feb 23–27, 2020 35.8% 20.2% 13.4% 10.0% 8.2% 5.0% 2.6% 4.8%
RealClear Politics[205] Feb 28, 2020 Feb 23–27, 2020 39.7% 24.3% 11.7% 11.3% 6.0% 5.7% 2.3% –[hn]
FiveThirtyEight[206] Feb 28, 2020 until Feb 27, 2020[d] 38.4% 19.1% 12.4% 8.5% 7.0% 4.3% 2.6% 7.7%[ho]
Average 38.0% 21.2% 12.5% 9.9% 7.1% 5.0% 2.5% 4.9%[hp]
South Carolina primary results (February 29, 2020) 48.7% 19.8% 11.3% 8.2% 7.1% 3.1% 1.3% –
   – Debate qualifying poll as designated by the Democratic National Committee
Polling in January and February 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Tulsi
Gabbard		 Amy
Klobuchar		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
South Carolina primary (popular vote) Feb 29, 2020 – – 48.65% – 8.2% 1.26% 3.13% 19.77% 11.34% 7.07% 0.2% 0.38%[hq] –
Atlas Intel[207] Feb 25–28, 2020 477 (LV) ± 4.0% 35% – 8% 2% 4% 24% 12% 7% – 2% 6%
Emerson College[208] Feb 26–27, 2020 550 (LV) ± 4.1% 41% – 11% 2% 6% 25% 11% 5% – – –
Trafalgar Group[209] Feb 26–27, 2020 1,081 (LV) ± 2.99% 43.9% – 9.6% 1.7% 5.9% 22.8% 10.5% 5.6% – – –
Data for Progress[210] Feb 23–27, 2020 1416 (LV) ± 2.6% 34% – 13% 3% 5% 25% 13% 7% – – –
Change Research[211] /
Post and Courier		 Feb 23–27, 2020 543 (LV) ± 5.1% 28% – 11% 5% 4% 24% 16% 12% – – 1%
Starboard Communications[212] Feb 26, 2020 1,102 (LV) ± 2.82% 40% – 9% 2% 6% 11% 12% 9% – – 12%
Feb 25, 2020 Tenth Democratic primary debate
Monmouth University[213] Feb 23–25, 2020 454 (LV) ± 4.6% 36% – 6% 1% 4% 16% 15% 8% – 0% 15%
Clemson University[214] Feb 17–25, 2020 650 (LV) ± 3.8% 35% – 8% 2% 4% 13% 17% 8% – – 12%
East Carolina University[215] Feb 23–24, 2020 1,142 (LV) ± 3.37% 31% – 6% 2% 2% 23% 20% 8% – – 8%
Public Policy Polling[216] Feb 23–24, 2020 866 (LV) ± 3.3% 36% – 7% 6% 3% 21% 7% 8% – – 11%[hr]
Feb 22, 2020 Nevada caucuses
YouGov/CBS News[217] Feb 20–22, 2020 1,238 (LV) ± 5.5% 28% – 10% 1% 4% 23% 18% 12% – 3%[hs] 1%
Marist Poll/NBC News[218] Feb 18–21, 2020 539 (LV) ± 6.0% 27% – 9% 3% 5% 23% 15% 8% – 2%[ht] 9%
997 (RV) ± 4.0% 25% – 9% 3% 5% 24% 15% 8% – 2%[hu] 9%
Winthrop University[219] Feb 9–19, 2020 443 (LV) ± 4.7% 24% – 7% 1% 4% 19% 15% 6% 1%[hv] 2%[hw] 22%
University of Massachusetts Lowell[220] Feb 12–18, 2020 400 (LV) ± 7.5% 23% – 11% 4% 9% 21% 13% 11% – 4%[hx] 4%
Change Research/The Welcome Party[221] Feb 12–14, 2020 1015 (LV) – 23% – 15% 1% 8% 23% 20% 9% – – 1%
East Carolina University[222] Feb 12–13, 2020 703 (LV) ± 4.3% 28% 6% 8% 1% 7% 20% 14% 7% – 0% 8%
Feb 11–12, 2020 New Hampshire primary; Yang withdraws from the race.
Feb 3, 2020 Iowa caucus
Zogby Analytics[223] Jan 31 – Feb 3, 2020 277 (LV) ± 5.9% 28% 4% 7% 4% 2% 20% 15% 11% 1% 0%[hy] 8%
East Carolina University[224] Jan 31 – Feb 2, 2020 469 (LV) ± 5.3% 37% 1% 4% 2% 2% 14% 19% 8% 3% 0%[hz] 10%
Change Research/
Post and Courier[225]		 Jan 26–29, 2020 651 (LV) ± 4% 25% – 7% 3% 2% 20% 18% 11% 3% 1%[ia] 10%
Jan 13, 2020 Booker withdraws from the race
GQR Research/Unite the Country[226][ib] Jan 9–13, 2020 600 (LV) – 36%[ic] –[id] 5%[ie] –[if] –[ig] 15%[ih] 12%[ii] 10%[ij] –[ik] –[il] –[im]
Fox News[227] Jan 5–8, 2020 808 (RV) ± 3.5% 36% 2% 4% 1% 1% 14% 15% 10% 2% 3%[in] 11%
Polling before January 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Other Undecided
Change Research/
Post and Courier[228]		 Dec 6–11, 2019 392 (LV) ± 4.9% 27% 5% 9% – – 20% 5% 19% 13%[io] –
Dec 3, 2019 Harris withdraws from the race
YouGov/FairVote[229] Nov 22 – Dec 2, 2019 400 (LV) ± 7.5% 39% 2% 10% 2% – 13% 7% 10% 13%[ip] 4%
Quinnipiac University[230] Nov 13–17, 2019 768 (LV) ± 4.8% 33% 2% 6% 3% – 11% 5% 13% 7%[iq] 18%
YouGov/CBS News[231] Nov 6–13, 2019 933 (RV) ± 4.2% 45% 2% 8% 5% – 15% 2% 17% 6%[ir] –
University of
North Florida[232]		 Nov 5–13, 2019 426 (LV) – 36% 2% 3% 4% – 10% 8% 10% 6%[is] 23%
Nov 1, 2019 O'Rourke withdraws from the race
Monmouth University[233] Oct 16–21, 2019 402 (LV) ± 4.9% 33% 2% 3% 6% 1% 12% 4% 16% 7%[it] 15%
Change Research/
Post and Courier[234]		 Oct 15–21, 2019 731 (LV) ± 3.6% 30% 3% 9% 11% 1% 13% 5% 19% 11%[iu] –
Firehouse Strategies/
Øptimus[235]		 Oct 8–10, 2019 607 (LV) ± 3.7% 32% 2% 4% 5% 1% 8% – 16% 33%[iv] –[iw]
YouGov/CBS News[236] Oct 3–11, 2019 915 (RV) ±3.9% 43% 3% 4% 7% 1% 16% 2% 18% 6%[ix] –
Gravis Marketing[237] Oct 3–7, 2019 516 (LV) ± 4.3% 34% 6% 0% 4% 2% 10% 7% 9% 10%[iy] 19%
Fox News[238] Sep 29 – Oct 2, 2019 803 (LV) ± 3.5% 41% 3% 2% 4% 0% 10% 4% 12% 8%[iz] 16%
Winthrop University[219] Sep 21–30, 2019 462 (RV) ± 4.9% 37% 3% 4% 7% 2% 8% 2% 17% 6%[ja] 12%
CNN/SSRS[239] Sep 22–26, 2019 406 (LV) ± 5.9% 37% 2% 4% 3% 2% 11% 3% 16% 4%[jb] 10%
YouGov/CBS News[240] Aug 28 – Sep 4, 2019 849 (RV)[jc] ± 4.3% 43% 2% 4% 7% 1% 18% 1% 14% 9%[jd] –
Change Research[241] Aug 9–12, 2019 521 (LV) ± 4.3% 36% 4% 5% 12% 1% 16% 1% 17% 7%[je] –
Firehouse Strategies/
Øptimus[242]		 Jul 23–25, 2019 554 (LV) ± 3.8% 31% 2% 4% 10% 0% 9% – 12% 8%[jf] 24%
Monmouth University[243] Jul 18–22, 2019 405 (LV) ± 4.9% 39% 2% 5% 12% 1% 10% 2% 9% 3%[jg] 17%
YouGov/CBS News[244] Jul 9–18, 2019 997 (RV)[jh] ± 3.8% 39% 3% 5% 12% 2% 17% 1% 12% 9%[ji] –
Fox News[245] Jul 7–10, 2019 701 (LV) ± 3.5% 35% 3% 2% 12% 0% 14% 0% 5% 3%[jj] 20%
Jul 9, 2019 Steyer announces his candidacy
Change Research[246] Jun 29 – Jul 4, 2019 421 (LV) – 27% 6% 6% 21% 1% 16% 0% 15% 8%[jk] –
Change Research[247] Jun 17–20, 2019 308 (LV) – 39% 5% 11% 9% 5% 13% 0% 15% 5%[jl] –
Change Research[248] Jun 11–14, 2019 933 (LV) ± 3.2% 37% 5% 11% 9% 4% 9% – 17% 8%[jm] –
YouGov/CBS News[249] May 31 – Jun 12, 2019 552 (LV) – 45% 4% 6% 7% 4% 18% – 8% 8%[jn] –
Zogby Analytics[250] May 23–29, 2019 183 (LV) ± 7.2% 36% 4% 7% 4% 2% 13% – 12% 4%[jo] –
Tel Opinion Research[251]* May 22–24, 2019 600 (LV) ± 4.0% 37% 2% 3% 7% – 10% – 8% – 32%
Crantford Research[252] May 14–16, 2019 381 (LV) ± 5.0% 42% 4% 8% 10% – 7% – 8% – –
Change Research[253] May 6–9, 2019 595 (LV) ± 4.0% 46% 4% 8% 10% 2% 15% – 8% 5%[jp] –
Firehouse Strategies/
Øptimus[254]		 Apr 30 – May 2, 2019 568 (LV) ± 4.5% 48% 4% 5% 4% 1% 12% – 5% 1%[jq] 20%
Apr 25, 2019 Biden announces his candidacy
Apr 14, 2019 Buttigieg announces his candidacy
Change Research[255] Mar 31 – Apr 4, 2019 744 (LV) ± 3.6% 32% 9% 7% 10% 9% 14% – 6% 12%[jr] –
– 12% 12% 15% 16% 24% – 11% 12%[js] –
Mar 14, 2019 O'Rourke announces his candidacy
Emerson College[256] Feb 28 – Mar 2, 2019 291 (LV) ± 5.7% 37% 6% 0% 9% 5% 21% – 5% 16%[jt] –
Change Research[257] Feb 15–18, 2019 600 (LV) ± 4.0% 36% 10% – 13% 8% 14% – 9% 12%[ju] –
– 28% 1% 35% – – – 20% 18%[jv] –
Feb 19, 2019 Sanders announces his candidacy
Feb 9, 2019 Warren announces her candidacy
Firehouse Strategies/
Øptimus[258]		 Jan 31 – Feb 2, 2019 557 (LV) ± 4.0% 36% 5% – 12% 2% 8% – 4% 2%[jw] 31%
Head-to-head polling
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Pete
Buttigieg		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
YouGov/FairVote[229][jx] Nov 22 – Dec 2, 2019 400 (LV) ± 7.5% 73% 27% – – – –
66% – 34% – – –
61% – – 29% [jy] 6%
– 39% 61% – – –
– 36% – 64% – –
– – 54% 46% – –
Tel Opinion Research[251] May 22–24, 2019 600 ± 4.0% 71% 10% – – – 19%
70% – 15% – – 16%
67% – – 15% – 18%

Alabama primary

The Alabama Democratic primary was held on March 3, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[259] March 3, 2020 February 28 – March 2, 2020 44.5% 21.0% 18.0% 11.0% 1.0% 4.5%
RealClear Politics[260] March 3, 2020 Insufficient recent polling to supply an average.
FiveThirtyEight[261] March 3, 2020 until March 2, 2020[d] 40.2% 18.4% 15.9% 10.9% 0.5% 14.1%
Average 42.35% 19.7% 16.95% 10.95% 0.75% 9.3%
Alabama primary results (March 3, 2020) 63.3% 16.5% 11.7% 5.7% 0.2% 2.6%
Tabulation of individual polls of the 2020 Alabama Democratic Primary
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 1–2, 2020 Buttigieg and Klobuchar withdraw from the race
Swayable[262] Mar 1–2, 2020 949 (LV) ± 5.0% 42% 18% – 3% – – 20% 10% 8%[jz] –
Data for Progress[263] Feb 28 – Mar 2, 2020 237 (LV) ± 6.4% 47% 18% – – – – 22% 12% 2%[ka] –
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Nov 1, 2019 O'Rourke withdraws from the race
SurveyMonkey[264] July 2–16, 2019 257 ± 7.8% 36% – 2% 5% 13% 1% 15% 9% 10%[kb] –
Change Research[265] March 20–23, 2019 1,200 ± 2.8% 42% – 9% 3% 12% 10% 13% 6% 4%[kc] –
– – 14% 4% 16% 17% 27% 12% 9%[kd] –

Arkansas primary

The Arkansas Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Michael
Bloomberg		 Bernie
Sanders		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[266] March 3, 2020 February 6–March 2, 2020 27.7% 22.3% 18.7% 11.3% 0.5% 19.5%
RealClear Politics[267] March 3, 2020 Insufficient recent polling to supply an average.
FiveThirtyEight[268] March 3, 2020 until March 2, 2020[d] 27.5% 21.0% 18.1% 12.5% 0.3% 20.6%
Average 27.6% 21.65% 18.4% 11.9% 0.4% 20.05%
Arkansas primary results (March 3, 2020) 40.5% 16.7% 22.4% 10.0% 0.7% 9.7%
Tabulation of individual polls of the 2020 Arkansas Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 1–2, 2020 Buttigieg and Klobuchar withdraw from the race
Swayable[269] Mar 1–2, 2020 714 (LV) ± 6.0% 28% 25% 8% 17% 10% 13%[ke] –
Data for Progress[270] Feb 28–Mar 2, 2020 300 (LV) ± 5.6% 36% 22% 2% 23% 15% 2%[kf] –
The Progress Campaign (D)[271] Feb 21–25, 2020 209 (RV) ± 4.9% 17% 17% 18% 19% 12% 6%[kg] 10%[kh]
Hendrix College/Talk Business & Politics[272] February 6–7, 2020 496 (LV) ± 4.3% 18.5% 19.6% 15.5% 16.4% 8.9% 10.1%[ki] 11%

California primary

The California Democratic primary was held on March 3, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Joe
Biden		 Elizabeth
Warren		 Michael
Bloomberg		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[273] March 3, 2020 February 20 – March 1, 2020 33.0% 20.0% 14.4% 15.0% 1.2% 16.4%
RealClear Politics[274] March 3, 2020 February 28 – March 2, 2020 35.0% 23.0% 16.0% 14.0% 1.5% 10.5%[kj]
FiveThirtyEight[275] March 3, 2020 until March 2, 2020[d] 31.2% 21.7% 14.9% 14.7% 0.7% 16.8%
Average 33.1% 21.6% 15.1% 14.6% 1.1% 14.5%
California primary results (March 3, 2020) 36.0% 27.9% 13.2% 12.1% 0.6% 10.2%
Polling from January 1 to March 3, 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Amy
Klobuchar		 Bernie
Sanders		 Tom
Steyer		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
March 2, 2020 Klobuchar withdraws from the race.
Swayable[276] March 1–2, 2020 3,388 (LV) ± 2.0% 20.8% 19.3% 8.4% 3.3% 28.7% 4.0% 9.6% – 6.0%[kk] –
Data for Progress[277] February 28 – March 2, 2020 516 (LV) ± 4.3% 25% 17% 5% 3% 32% – 16% – 1%[kl] –
AtlasIntel[278] February 24 – March 2, 2020 727 (LV) ± 4.0% 26% 15% 3% 1% 34% – 15% – 2%[km] 4%
March 1, 2020 Buttigieg withdraws from the race.
Point Blank Political[279] February 29 – March 1, 2020 1,220 (LV) ± 4.1% 22% 10% 6% 3% 34% 1% 14% – 1%[kn] 9%
Emerson College/Nexstar[280] February 29 – March 1, 2020 545 (LV) ± 4.1% 21% 11% 7% 5% 38% 2% 16% – 1%[ko] –
February 29, 2020 South Carolina primary; Steyer withdraws from the race after close of polls.
YouGov/CBS News[281] February 27–29, 2020 1,411 (LV) ± 4.0% 19% 12% 9% 4% 31% 3% 18% – 4%[kp] –
Suffolk University[282] February 26–29, 2020 500 (LV) ± 4.4% 14% 16% 7% 5% 35% 3% 12% – 3%[kq] –
YouGov/Hoover
Institution/Stanford University[283]		 February 26–28, 2020 1,020 (LV) – 19% 13% 9% 6% 28% 4% 18% – 3%[kr] –
Point Blank Political[284] February 26–28, 2020 2,276 (LV) ± 2.9% 14% 12% 9% 3% 34% 3% 14% – 1%[ks] 10%
40%[kt] – – – 50% – – – – 11%
– 32%[ku] – – 57% – – – – 11%
– – – – 46%[kv] – 36% – – 16%
CNN/SSRS[285] February 22–26, 2020 488 (LV) ± 5.2% 13% 12% 7% 6% 35% 3% 14% – 3%[kw] 8%
February 25, 2020 Tenth Democratic primary debate
Point Blank Political[286] February 23–25, 2020 2,098 (LV) ± 3.0% 11% 11% 9% 4% 34% 3% 13% – 2%[kx] 13%
Berkeley IGS/LA Times[287] Feb 20–25, 2020 3,002 (LV) ± 2.0% 8% 12% 11% 6% 34% 2% 17% 1% 2%[ky] 7%
February 22, 2020 Nevada caucuses
Change Research/KQED News[288] February 20–23, 2020 1,069 (LV) ± 3.4% 12% 6% 11% 5% 37% 3% 20% 4%[kz] 3%[la] –
University of Massachusetts Lowell[289] February 12–20, 2020 450 (LV) ± 6.7% 13% 12% 12% 7% 24% 2% 16% – 7%[lb] 6%
Monmouth University[290] February 16–19, 2020 408 (LV) ± 4.9% 17% 13% 9% 4% 24% 5% 10% – 3%[lc] 13%
36%[ld] – – – 44% – – – 15%[le] 5%
– 31%[lf] – – 48% – – – 14%[lg] 6%
– – 26%[lh] – 51% – – – 16%[li] 7%
– – – 24%[lj] 54% – – – 16%[lk] 6%
Public Policy Institute of California[291] February 7–17, 2020 573 (LV) ± 5.7% 14% 12% 12% 5% 32% 3% 13% – 2%[ll] 8%
SurveyUSA[292] February 13–16, 2020 520 (LV) ± 4.8% 15% 21% 12% 6% 25% 3% 9% – 1%[lm] 9%
YouGov/USC[293] February 1–15, 2020 – – 21% 8% 6% 3% 29% 2% 20% – 2%[ln] 9%[lo]
February 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls.
Capitol Weekly[294] February 6–9, 2020 843 (LV) – 8%[lp] 8% 15% 7% 25% 4% 19% 5% 6%[lq] 3%[lr]
11% 13% 14% 5% 29% 3% 16% 4% 5%[ls] 1%[lt]
February 3, 2020 Iowa Caucuses
Change Research/KQED News[295] January 25–27, 2020 1,967 (LV) – 15% 4% 8% 3% 30% 2% 16% 5% 4%[lu] 13%
Berkeley IGS/LA Times[296] January 15–21, 2020 2,895 (LV) ± 2.5% 15.0% 6.0% 7.2% 4.9% 26.3% 1.8% 19.6% 3.9% 3.6%[lv] 11.7%
SurveyUSA[297] January 14–16, 2020 565 (LV) ± 5.1% 30% 6% 8% 2% 20% 4% 20% 4% 2%[lw] 4%
January 13, 2020 Booker withdraws from the race.
Public Policy Institute of California/Mercury News[298] January 3–12, 2020 530 (LV) ± 6.5% 24% 1% 6% 4% 27% – 23% 3% 5%[lx] 7%
Tulchin Research/USC Rossier/The Hill[299] January 3–10, 2020 1,121 (LV) – 25% 7% 8% 2% 29% 3% 12% 5% 2%[ly] 6%
Capitol Weekly[300] January 1–9, 2020 1,053 (LV) – 20% 6% 11% 5% 24% 2% 21% 7% 3%[lz] –
Polling before 1 January 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Change Research/KQED News[301] December 6–10, 2019 862 (LV) ± 3.3% 19% 3% 12% – – 26% 23% 4% 13%[ma] –
CNN/SSRS[302] December 4–8, 2019 508 (LV) ± 5.2% 21% 3% 9% – – 20% 17% 6% 12%[mb] 11%
Capitol Weekly[303] December 3–7, 2019 581 (LV) –[mc] 19% 2% 14% – – 19% 23% 5% 17%[md] 1%
19% 2% 13% 4% – 19% 21% 5% 17%[me] 0%
December 3, 2019 Harris withdraws from the race.
Berkeley IGS/LA Times[304] November 21–27, 2019 1,252 (LV) – 14% 1% 12% 7% – 24% 22% 3% 12%[mf] 9%
SurveyUSA[305] November 20–22, 2019 558 (LV) ± 4.8% 28% 3% 8% 10% – 18% 13% 5% 11%[mg] 5%
Capitol Weekly[306] November 1–12, 2019 695 (LV) – 18% 1% 14% 6% – 21% 27% 4% 8%[mh] 1%
Public Policy Institute of California[307] November 3–12, 2019 682 (LV) – 24% 1% 7% 8% – 17% 23% 5% 6%[mi] 9%
November 1, 2019 O'Rourke withdraws from the race.
Change Research[308] October 15–18, 2019 1,631 (LV) – 19% 1% 9% 8% 1% 24% 28% 3% 6%[mj] –
SurveyUSA[309] October 15–16, 2019 553 (LV) ± 6.9% 33% 2% 4% 8% 2% 17% 18% 4% 5%[mk] 8%
Capitol Weekly[310] October 1–14, 2019 590 (LV) – 21% 2% 6% 8% 0% 15% 35% 3% 9%[ml] –
[[Public Policy Institute of<br ]]/[[>California]][311] September 16–25, 2019 692 (LV) ± 4.9% 22% 2% 6% 8% 1% 21% 23% 3% 7%[mm] 9%
Berkeley IGS/LA Times[312] September 13–18, 2019 2,272 – 20% 1% 6% 8% 3% 19% 29% 2% 5%[mn] 8%
Emerson College[313] September 13–16, 2019 424 ± 4.7% 26% 1% 4% 6% 5% 26% 20% 7% 4%[mo] –
SurveyUSA[314] September 13–15, 2019 547 ± 4.8% 27% 2% 3% 13% 2% 18% 16% 7% 4%[mp] 7%
Change Research/KQED[315] September 12–15, 2019 3,325 ± 1.7% 18% 2% 10% 11% 2% 23% 25% 3% 5%[mq] –
Capitol Weekly[316] September 1–13, 2019 599 – 18% 1% 7% 11% 2% 21% 29% 4% 5%[mr] –
Capitol Weekly[317] September 1–13, 2019 5,510 – 18% 1% 8% 11% 2% 17% 33% 3% 7%[ms] –
SurveyUSA[318] August 1–5, 2019 528 ± 6.3% 25% 1% 6% 17% 0% 18% 21% 1% 1%[mt] 10%
PPIC[319] July 14–23, 2019 766 ± 4.4% 11% – 5% 19% – 12% 15% – 14%[mu] 25%
YouGov/CBS News[320] July 9–18, 2019 1,514 ± 2.9% 24% 1% 6% 23% 1% 16% 19% 1% 9%[mv] –
Quinnipiac University[321] July 10–15, 2019 519 ± 5.7% 21% 1% 3% 23% 1% 18% 16% 2% 2%[mw] 10%
Capitol Weekly[317] July 1–15, 2019 816 – 20% 1% 8% 20% 2% 16% 25% 1% 7%[mx] –
Change Research[322] July 9–11, 2019 1,609 ± 2.5% 17% 1% 8% 23% 2% 20% 22% 2% 5%[my] –
July 8, 2019 Swalwell withdraws from the race.
Capitol Weekly[323] June 1–30, 2019 813 – 23% 2% 8% 14% 2% 19% 23% 2% 9%[mz] –
UC Berkeley[324] June 4–10, 2019 2,131 ± 3.0% 22% 1% 10% 13% 3% 17% 18% 1% 3%[na] 11%
Capitol Weekly[323] May 1–31, 2019 1,180 – 29% 2% 9% 17% 4% 22% 11% 0% 6%[nb] –
Change Research[325] May 25–28, 2019 1,649 ± 2.4% 30% 1% 12% 15% 3% 23% 12% 1% 2%[nc] –
Capitol Weekly[323] April 15–30, 2019 1,204 – 20% 2% 19% 17% 4% 20% 10% – 9%[nd] –
April 25, 2019 Biden announces his candidacy.
April 14, 2019 Buttigieg announces his candidacy.
Change Research[326] April 6–9, 2019 2,003 ± 2.2% 21% 3% 9% 19% 10% 22% 8% 1% 7%[ne] –
– 5% 11% 27% 16% 28% 9% 1% 5%[nf] –
April 8, 2019 Swalwell announces his candidacy.
Quinnipiac University[327] April 3–8, 2019 482 ± 5.9% 26% 2% 7% 17% 4% 18% 7% 1% 6%[ng] 13%
March 14, 2019 O'Rourke announces his candidacy.
February 19, 2019 Sanders announces his candidacy.
Change Research[328] February 9–11, 2019 948 – 26% 3% 1% 26% 8% 20% 7% 0% 7%[nh] –
– 7% 2% 53% – – 23% 1% 15%[ni] –

Colorado primary

The Colorado Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Joe
Biden		 Elizabeth
Warren		 Michael
Bloomberg		 Tulsi
Gabbard		 Un-
decided[a]
270 to Win[329] March 3, 2020 Feb 24–Mar 2, 2020 29.3% 16.3% 16.0% 15.3% 1.0% 22.1%
RealClear Politics[330] March 3, 2020 Insufficient recent polling to supply an average.
FiveThirtyEight[331] March 3, 2020 until March 3, 2020[d] 26.8% 18.2% 16.3% 15.8% 0.5% 22.4%
Average 28.0% 17.3% 16.2% 15.6% 0.8% 22.1%
Colorado primary results (March 3, 2020) 37.0% 24.6% 17.6% 18.5% 1.0% 1.3%
Tabulation of individual polls of the 2020 Colorado Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Michael
Bennet		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 John
Hickenlooper		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[332] Mar 1–2, 2020 921 (LV) ± 4.0% – 20% 19% 12% – – 29% 12% – 7%[nj] –
Data for Progress[333] Feb 28–Mar 2, 2020 464 (LV) ± 4.2% – 18% 16% 8% – – 32% 21% – 5%[nk] –
Mar 1, 2020 Buttigieg withdraws from the race
Elucd[334] Feb 26–Mar 1, 2020 561 (LV) ± 4.1% – 10% 9% 10% – – 34% 14% – 9%[nl] 14%
Magellan Strategies[335] Feb 24–25, 2020 500 (LV) ± 4.38% – 11% 11% 12% – – 27% 15% – 9%[nm] 15%
Data for Progress[336] Feb 23–25, 2020 471 (LV) ± 4.7% – 10% 14% 14% – – 34% 20% – 7%[nn] 1%
Feb 11, 2020 New Hampshire primary; Yang and Bennet withdraw from the race
Dec 3, 2019 Harris withdraws from the race
Emerson College[337] Aug 16–19, 2019 403 (LV) ± 4.8% 1% 25% – 5% 13% – 26% 20% 4% 8%[no] –
Aug 15, 2019 Hickenlooper withdraws from the race
Public Policy Polling[338] Jul 12–14, 2019 519 (LV) – 5% 22% – 7% 9% 7% 15% 19% 0% 14%[np] –

Maine primary

The Maine Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date updated Dates polled Bernie
Sanders		 Joe
Biden		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Undecided[a]
270 to Win[339] Mar 3, 2020 Feb 10–Mar 2, 2020 28.7% 19.7% 20.0% 13.3% 1.3% 17.0%
RealClear Politics[340] Mar 3, 2020 Feb 28–Mar 2, 2020 38.5% 24.5% 14.0% 18.0% –[nq] 5.0%
FiveThirtyEight[341] Mar 3, 2020 until Mar 2, 2020 [d] 31.1% 21.7% 17.2% 14.2% 0.7% 19.6%
Average 32.8% 22.0% 17.1% 15.2% 1.0% 11.9%
Maine primary results (March 3, 2020) 32.4% 33.4% 11.8% 15.6% 0.9% 5.9%
Tabulation of individual polls of the 2020 Maine Democratic Primary
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[342] Mar 1–2, 2020 209 (LV) ± 9.0% 22% 28% 10% – 27% 11% – 3%[nr] –
Change Research[343] Mar 1–2, 2020 507 (LV) – 24% 10% – – 43% 16% – 7%[ns] –
Data for Progress[344] Feb 28–Mar 2, 2020 385 (LV) ± 4.9% 25% 18% 1% – 34% 20% – 2%[nt] –
Mar 1, 2020 Buttigieg withdraws from the race
SocialSphere/Colby College[345] Feb 10–13, 2020 350 (LV) – 12% 14% 16% – 25% 9% 2% 10%[nu] 12%
Feb 11, 2020 Yang withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Maine People's Resource Center[346] Oct 14–21, 2019 728 (LV) ± 3.63% 26.8% – 9.1% 5.0% 15.4% 22.1% 1.7% 11.4%[nv] 4.4%
Public Policy Polling[347] Oct 11–13, 2019 366 (LV) ± 5.1% 19% – 9% 4% 12% 31% 3% 20%[nw] –[nx]
Gravis Marketing[348] Jun 24, 2019 243 ± 6.3% 25% – 8% 2% 15% 17% 5% 15%[ny] 11%

Massachusetts primary

The Massachusetts Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Elizabeth
Warren		 Joe
Biden		 Michael
Bloomberg		 Tulsi
Gabbard		 Others/
Undecided[nz]
270 to Win[349] March 3, 2020 Until March 3, 2020 22.4% 21.0% 15.0% 13.6% 1.8% 26.2%
FiveThirtyEight[350] March 3, 2020 until March 3, 2020 [d] 24.4% 21.0% 18.1% 14.5% 0.4% 21.6%
Average 23.4% 21.0% 16.6% 14.0% 1.1% 23.9%
Massachusetts primary results (March 3, 2020) 26.6% 21.4% 33.4% 11.7% 0.7% 6.1%
Tabulation of individual polls of the 2020 Massachusetts Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Deval
Patrick		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race; endorses Biden
Swayable[351] Mar 1–2, 2020 917 (LV) ± 4.0% 17% 18% – 11% – 5% – – 27% 15% 8%[oa] –
Data for Progress[352] Feb 28–Mar 2, 2020 301 (LV) ± 5.6% 26% 15% – 2% – 1% – – 26% 28% 2%[ob] –
Mar 1, 2020 Buttigieg withdraws from the race; endorses Biden
Suffolk University/Boston Globe/WBZ-TV[353] Feb 26–29, 2020 500 (LV) - 11.0% 13.0% – 12.4% – 5.0% – – 24.2% 22.2% 3.6%[oc] 8.6%
WBUR/MassINC[354] Feb 23–26, 2020 426 (LV) ± 4.9% 9% 13% - 14% - 6% - - 25% 17% 9%[od] 8%
UMass Amherst[355] Feb 18–24, 2020 400 (LV) ± 5.9% 12% 9% - 14% - 7% - - 25% 23% 8%[oe] 3%
Falchuk & DiNatale[356] Feb 16–18, 2020 453 (LV) – 13% 13% – 13% – 14% – – 17% 16% 5%[of] 8%
University of Massachusetts Lowell[357] Feb 12–19, 2020 450 (LV) ± 6.1% 14% 12% – 15% – 9% – – 21% 20% 6%[og] 4%
Feb 12, 2020 Patrick withdraws from the race
Falchuk & DiNatale[358] Jan 27–30, 2020 334 (LV) – 16% 8% – 6% – 7% – 3% 12% 23% 7%[oh] –
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Nov 14, 2019 Patrick announces his candidacy
Nov 1, 2019 O'Rourke withdraws from the race
WBUR[359] Oct 16–20, 2019 456 ± 4.6% 18% – 0% 7% 3% 1% 0% – 13% 33% 7%[oi] 15%
Suffolk University[360] Sep 3–5, 2019 500 - 26% – 1% 5% 3% 0% 1% – 8% 24% 6%[oj] 25%
Aug 23, 2019 Moulton withdraws from the race
Suffolk University[361] Jun 5–9, 2019 370 ± 5.1% 22% – 1% 8% 5% 0% 1% – 6% 10% 5%[ok] 42%
Apr 25, 2019 Biden announces his candidacy
Apr 22, 2019 Moulton announces his candidacy
Apr 14, 2019 Buttigieg announces his candidacy
Emerson College[362] Apr 4–7, 2019 371 ± 5.0% 23% – 2% 11% 7% 2% 8% – 26% 14% 8%[ol] –
Mar 14, 2019 O'Rourke announces his candidacy
Feb 19, 2019 Sanders announces his candidacy
Feb 10, 2019 Klobuchar announces her candidacy
Feb 9, 2019 Warren announces her candidacy
Feb 1, 2019 Booker announces his candidacy
Jan 21, 2019 Harris announces her candidacy
YouGov/UMass Amherst[363] Nov 7–14, 2018 655 – 19% – 3% – 6% 3% 10% 6% 14% 11% 1%[om] 27%
Hypothetical polling with only Biden, Sanders and Warren
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Bernie
Sanders		 Elizabeth
Warren		 Undecided
Evan Falchuk and Lou DiNatalie/Commonwealth Magazine[364] Oct 23–25, 2019 443 (LV) – 35% 13% 41% 11%

Minnesota primary

The Minnesota Democratic primary was held on March 3, 2020.[18] Amy Klobuchar led in pre-election polling, but withdrew from the race the night before the election and endorsed Joe Biden (who went on to win Minnesota).

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Joe
Biden		 Michael
Bloomberg		 Tulsi
Gabbard		 Un-
decided[a]
270 to Win[365] Mar 2, 2020 Feb 20–22, 2020 28.0% 22.0% 13.5% 8.5% 6.0% 2.5% 19.5%
FiveThirtyEight[366] Mar 2, 2020 until Mar 2, 2020[d] 24.4% 26.2% 14.4% 10.7% 5.6% 1.5% 17.2%
Average 26.2% 24.1% 14.0% 9.6% 5.8% 2.0% 18.3%
Minnesota Primary results (March 3, 2020) 5.6% 29.9% 15.4% 38.6% 8.3% 0.3% 1.8%
Tabulation of individual polls of the 2020 Minnesota Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[367] Mar 1–2, 2020 1,472 (LV) ± 4.0% 20% 14% 4% – 21% – 27% 8% 6%[on] –
Data for Progress[368] Feb 28–Mar 2, 2020 650 (LV) ± 3.84% 27% 16% – – 2% – 32% 21% 1%[oo] –
Mar 1, 2020 Buttigieg withdraws from the race
Mason-Dixon/Star Tribune/
MPR News Minnesota[369]		 Feb 17–20, 2020 500(LV) ± 4.5% 8% 3% 3% – 29% – 23% 11% 2%[op] 21%
University of Massachusetts Lowell[370] Feb 12–19, 2020 450(LV) ± 6.4% 9% 9% 10% – 27% – 21% 16% 4%[oq] 4%
Dec 3, 2019 Harris withdraws from the race
Nov 1, 2019 O'Rourke withdraws from the race
St. Cloud State University[371] Oct 14-Nov 1, 2019 177 (LV) – 15% – 2% – 15% – 12% 15% – –
Kaiser Family Foundation[372] Sep 23–Oct 15, 2019 249 – 14% – 7% 1% 15% 1% 13% 25% 5%[or] 21%
Change Research[373] Jun 8–12, 2019 772 ± 3.7% 20% – 11% 4% 16% 3% 19% 21% 5%[os] –

North Carolina primary

The North Carolina Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date Updated Dates polled Joe
Biden		 Bernie
Sanders		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[374] March 3, 2020 February 21–March 2, 2020 27.8% 25.8% 17.0% 11.6% 0.8% 17.0%
RealClear Politics[375] March 3, 2020 February 27–March 2, 2020 36.7% 23.3% 14.3% 10.7% 1.0% 14.0%
FiveThirtyEight[376] March 3, 2020 until March 2, 2020[d] 34.5% 22.1% 14.4% 11.3% 0.2% 17.5%
Average 33.0% 23.7% 15.2% 11.2% 0.7% 16.2%
North Carolina primary results (March 3, 2020) 43.0% 24.1% 13.0% 10.5% 0.5% 8.9%
Tabulation of individual polls of the 2020 North Carolina Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race
Spry Strategies/Civitas[377] Mar 1–2, 2020 543 (LV) ± 4.2% 45% 11% – 3% – 18% 7% – 6%[ot] 11%
Swayable[378] Mar 1–2, 2020 1,209 (LV) ± 3.0% 36% 18% – 4% – 23% 10% – 10%[ou] –
Data for Progress[379] Feb 28–Mar 2, 2020 334 (LV) ± 5.3% 36% 18% – 3% – 27% 14% – 3%[ov] –
Mar 1, 2020 Buttigieg withdraws from the race
Elucd[380] Feb 26–Mar 1, 2020 657 (LV) ± 3.8% 25% 15% – 6% – 26% 12% – 6%[ow] 10%
East Carolina University[381] Feb 27–28, 2020 499 (LV) ± 5.1% 29% 14% – 4% – 25% 11% – 9%[ox] 9%
High Point University[382] Feb 21–28, 2020 274 (LV) – 14% 20% – 8% – 28% 12% – 13%[oy] 7%
472 (RV) – 14% 18% – 8% – 31% 11% – 11%[oz] 7%
Spry Strategies/Civitas[383] Feb 26–27, 2020 581 (LV) ± 4.1% 27% 16% – 4% – 19% 11% – 10%[pa] 15%
Marist College[384] Feb 23–27, 2020 568 (LV) ± 5.1% 24% 15% – 7% – 26% 11% – 8%[pb] 7%
974 (RV) ± 3.9% 22% 15% – 7% – 27% 11% – 9%[pc] 8%
Data for Progress[385] Feb 23–27, 2020 536 (LV) ± 4.2% 25% 18% – 10% – 27% 11% – 8%[pd] –
Public Policy Polling[386] Feb 23–24, 2020 852 (LV) ± 3.4% 23% 17% – 9% – 20% 11% – 8%[pe] 11%[pf]
Meredith College[387] Feb 16–24, 2020 430 (LV) – 17.9% 17.0% 0.7% 10.0% – 19.5% 10.9% – 7.6%[pg] 16.5%[ph]
Spry Strategies/Civitas[388] Feb 21–23, 2020 561 (LV) ± 3.75% 20% 20% – 3% – 20% 9% – 13%[pi] 14%
University of Massachusetts Lowell[389] Feb 12–18, 2020 450 (LV) ± 6.5% 16% 19% – 10% – 23% 13% – 13%[pj] 6%
SurveyUSA/WRAL News[390] Feb 13–16, 2020 698 (LV) ± 5.0% 20% 22% – 11% – 22% 8% – 7%[pk] 11%
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
High Point University[391] Jan 31–Feb 6, 2020 225 (LV) – 24% 16% 0% 8% – 20% 11% 3% 9%[pl] 8%
399 (RV) – 19% 13% 1% 6% – 25% 12% 4% 8%[pm] 12%
Public Policy Polling[392] Feb 4–5, 2020 604 (LV) – 25% 14% – 9% – 16% 12% 5% 7%[pn] 13%[po]
Jan 13, 2020 Booker withdraws from the race
Public Policy Polling[393] Jan 10–12, 2020 509 (LV) – 31% 8% 1% 6% – 18% 15% 5% 6%[pp] 11%[pq]
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg launches his campaign
Fox News[394] Nov 10–13, 2019 669 ± 3.5% 37% – 2% 6% 4% 14% 15% 2% 8%[pr] 10%
HighPoint University[395] Nov 1–7, 2019 347[ps] ± 6.4% 33% – 2% 4% 5% 18% 13% 2% 6%[pt] 10%
1,049[pu] ± 3.6% 18% – 2% 4% 4% 15% 7% 2% 7%[pv] 23%
Siena Research/New York Times[396] Oct 13–26, 2019 324 – 29% – 1% 1% 1% 13% 15% 0% 3%[pw] 32%
High Point University[397] Sep 13–19, 2019 348 (A) – 31% – 4% 3% 6% 20% 15% 4% 3%[px] 9%
SurveyUSA/Civitas[398] Aug 1–5, 2019 534 ± 6.1% 36% – 1% 5% 8% 15% 13% 1% 2%[py] 17%
Emerson College[399] May 31 – Jun 3, 2019 397 ± 4.9% 39% – 1% 8% 5% 22% 15% 1% 7%[pz] –

Oklahoma primary

The Oklahoma Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[400] March 3, 2020 February 17–March 2, 2020 28.0% 23.7% 16.0% 12.3% 1.5% 18.5%
RealClear Politics[401] March 3, 2020 Insufficient recent polling to supply an average.
FiveThirtyEight[402] March 3, 2020 until March 2, 2020[d] 30.6% 22.1% 13.7% 13.6% 1.1% 18.9%
Average 29.3% 22.9% 14.85% 12.95% 1.3% 18.7%
Oklahoma primary results (March 3, 2020) 38.7% 25.4% 13.9% 13.4% 1.7% 6.9%
Tabulation of individual polls of the 2020 Oklahoma Democratic primary
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 1–2, 2020 Buttigieg and Klobuchar withdraw from the race
Swayable[403] Mar 1–2, 2020 472 (LV) ± 6.0% 38% 11% 1% – 1% 26% 13% 9%[qa] –
Data for Progress[404] Feb 28–Mar 2, 2020 300 (LV) ± 5.5% 35% 19% – – – 28% 16% 2%[qb] –
SoonerPoll[405] Feb 17–21, 2020 409 4.84% 21% 20% 10% – 7% 13% 9% 2%[qc] 19%
Cole Hargrave Snodgrass & Associated[406] Feb 10–13, 2020 172 (LV) – 12% 20% 1% – 6% 14% 8% 21%[qd] 9%
Dec 3, 2019 Harris withdraws from the race
SoonerPoll[407] Jul 17–27, 2019 152 – 26% – 6% 8% 1% 5% 12% 11%[qe] 34%

Tennessee primary

The Tennessee Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[408] March 3, 2020 February 28–March 2, 2020 31.0% 27.0% 18.5% 12.0% 0.5% 11.0%
RealClear Politics[409] March 3, 2020 Insufficient recent polling to supply an average.
FiveThirtyEight[410] March 3, 2020 until March 2, 2020[d] 29.0% 24.7% 15.7% 12.3% 0.2% 18.1%
Average 30.0% 25.85% 17.1% 12.15% 0.35% 14.55%
Tennessee primary results (March 3, 2020) 41.7% 25.0% 15.5% 10.4% 0.4% 7.0%
Tabulation of individual polls of the 2020 Tennessee Democratic Primary
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 1–2, 2020 Buttigieg and Klobuchar withdraw from the race
Swayable[411] Mar 1–2, 2020 1,527 (LV) ± 4.0% 28% 17% 8% – 27% 9% 11%[qf] –
Data for Progress[412] Feb 28–Mar 2, 2020 368 (LV) ± 5.1% 34% 20% 2% – 27% 15% 3%[qg] –
Dec 3, 2019 Harris withdraws from the race
SurveyMonkey[413] Jul 2–16, 2019 128 ± 11.2% 33% – 6% 12% 13% 18% 11%[qh] –

Texas primary

The Texas Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Joe
Biden		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[414] Mar 2, 2020 Feb 17-Mar 1, 2020 30.2% 25.6% 16.8% 13.6% 1.0% 12.8%
RealClear Politics[415] Mar 2, 2020 Feb 27-Mar 1, 2020 29.5% 28.0% 18.0% 14.5% 2.0% 8.0%
FiveThirtyEight[416] March 3, 2020 until March 2, 2020 [d] 28.2% 25.5% 16.5% 13.3% 0.4% 16.1%
Average 29.0% 26.5% 17.1% 13.8% 0.9% 12.6%
Texas primary results (March 3, 2020) 30.0% 34.5% 14.4% 11.4% 0.4% 9.3%
Polling from January 1, 2020, to March 3, 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[417] Mar 1–2, 2020 1,378 (LV) ± 3.0% 27% 20% 5% 3% 28% 12% – 6%[qi] –
Data for Progress[418] Feb 28–Mar 2, 2020 300 (LV) ± 5.7% 30% 20% 4% 3% 28% 15% – 1%[qj] –
AtlasIntel[419] Feb 24-Mar 2, 2020 486 (LV) ± 4.0% 25% 16% 5% 3% 35% 9% – 3%[qk] 4%
Mar 1, 2020 Buttigieg withdraws from the race
Emerson College/Nexstar[420] Feb 29-Mar 1, 2020 450 (LV) ± 4.6% 26% 16% 5% 4% 31% 14% – 5%[ql] –
Elucd[421] Feb 26-Mar 1, 2020 833 (LV) ± 3.4% 20% 14% 7% 5% 31% 13% – – 11%
YouGov/CBS News[422] Feb 27–29, 2020 635 (LV) ± 6.2% 26% 13% 6% 6% 30% 17% – 2%[qm] –
Marist College[423] Feb 23–27, 2020 556 (LV) ± 5.3% 19% 15% 8% 3% 34% 10% – 2%[qn] 9%
1,050 (RV) ± 3.7% 18% 16% 8% 3% 35% 8% – 3%[qo] 9%
Data for Progress[424] Feb 23–27, 2020 513 (LV) ± 4.3% 21% 21% 9% 5% 30% 13% – 2%[qp] –
CNN/SSRS[425] Feb 22–26, 2020 387 (LV) ± 6.0% 20% 18% 8% 3% 29% 15% – 0% 5%[qq]
Latino Decisions/Univision/
University of Houston[426]		 Feb 21–26, 2020 527 (LV) ± 4.3% 20% 20% 6% 2% 26% 11% – 7%[qr] 6%
University of Texas at Tyler[427] Feb 17–26, 2020 586 (LV) ± 4.1% 19% 21% 8% 4% 29% 10% – 2%[qs] 5%
Public Policy Polling/Progress Texas[428] Feb 24–25, 2020 1,045 (LV) ± 3.0% 31% –[qt] 11% 7% 25% 17% – 4%[qu] 5%[qv]
24% 17% 10% 4% 24% 14% – 2%[qw] 5%[qx]
Feb 22, 2020 Nevada caucuses
University of Massachusetts Lowell[429] Feb 12–18, 2020 600 (LV) ± 5.9% 20% 18% 7% 9% 23% 14% – 6%[qy] 3%
YouGov/University of Houston[430] Feb 6–18, 2020 1,352 (LV) ± 2.7% 20% 12% 11% 7% 20% 17% – 8%[qz] 5%
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race
YouGov/University of Texas/Texas Tribune[431] Jan 31-Feb 9, 2020 575 (LV) ± 4.09% 22% 10% 7% 3% 24% 15% 6% 13%[ra] –
University of Texas At Tyler/Dallas News[432] Jan 21–30, 2020 372 (LV) ± 4.8% 34% 16% 4% 3% 18% 17% 3% 5%[rb] –
Data for Progress[433][A] Jan 16–21, 2020 615 (LV) ± 6.5% 26% 7% 10% 4% 20% 14% 3% 3%[rc] 12%
Texas Lyceum[434] Jan 10–19, 2020 401 (LV) ± 4.89% 28% 9% 6% 4% 26% 13% 0% 5%[rd] 7%
Jan 13, 2020 Booker withdraws from the race
Jan 2, 2020 Castro withdraws from the race
Polling before January 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Julian
Castro		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
CNN/SSRS[435] Dec 4–8, 2019 327 (LV) ± 6.6% 35% 2% 9% 3% – 1% – 15% 13% 3% 11%[re] 9%
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
University of Texas at Tyler[436] Nov 5–14, 2019 427 (RV) ± 4.7% 28% 1% 8% 3% 5% 2% – 18% 19% 2% 4%[rf] –
Nov 1, 2019 O'Rourke withdraws from the race
University of Texas/
Texas Tribune[437]		 Oct 18–27, 2019 541 ± 4.2% 23% 1% 6% 2% 5% 2% 14% 12% 18% 4% 4%[rg] 5%
University of Texas at Tyler[438] Sep 13–15, 2019 474 (RV) ± 4.5% 28% 6% 4% 4% 6% 0% 19% 17% 11% 1% 5%[rh] –
Texas Tribune[439] Aug 29–Sep 15, 2019 550 ± 4.2% 26% 1% 4% 3% 5% 1% 14% 12% 18% 3% 4%[ri] 6%
Quinnipiac University[440] Sep 4–9, 2019 456 ± 5.5% 28% 1% 3% 3% 5% 2% 12% 12% 18% 1 1%[rj] 12%
Univision/University of Houston[441] Aug 31– Sep 6, 2019 1004 (RV) ± 4.5% 20% 3% 1% 12% 5% – 19% 13% 12% 1% 4%[rk] 10%
Ragnar Research[442] Sep 3–5, 2019 600 ± 3.9% 23% 1% 6% 2% 7% – 12% 12% 15% –[rl] 7%[rm] 18%
Climate Nexus[443] Aug 20–25, 2019 639 – 24% 2% 3% 3% 7% – 21% 12% 12% 1% 5%[rn] 9%
TEXAS LYCEUM[444] Aug 16–25, 2019 358 ± 5.2% 24% 2% 3% 4% 4% 3% 18% 13% 15% 2% 8%[ro] 2%
Emerson College[445] Aug 1–3, 2019 400 ± 4.9% 28% 2% 7% 2% 5% <1% 19% 16% 14% 3% 5%[rp] –
YouGov/CBS News[446] Jul 9–18, 2019 910 ± 4.2% 27% 0% 4% 4% 12% 1% 17% 12% 16% 1% 6%[rq] –
YouGov/University of Texas[447] May 31 – Jun 9, 2019 483 ± 5.0% 23% 1% 8% 3% 5% 1% 15% 12% 14% 0% 8%[rr] 7%
Quinnipiac University[448] May 29 – Jun 4, 2019 407 ± 5.8% 30% 1% 3% 4% 4% <1% 16% 15% 11% 1% 5%[rs] 8%
Change Research[449] May 30 – Jun 3, 2019 1,218 ± 2.8% 24% 1% 8% 2% 8% 1% 27% 13% 12% 1% 2%[rt] –
Emerson College[450] Apr 25–28, 2019 342 ± 5.3% 23% 1% 8% 4% 3% 3% 22% 17% 7% 3% 11%[ru] –
Apr 25, 2019 Biden announces his candidacy
Change Research[451] Apr 18–22, 2019 1,578 ± 2.5% 20% 2% 15% 4% 5% 1% 25% 19% 5% 1% 2%[rv] –
– 4% 21% 5% 8% 1% 33% 23% 5% 0% 0%[rw] –

Utah primary

The Utah Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Joe
Biden		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[452] March 3, 2020 Feb 22–March 2, 2020 26.3% 21.7% 18.7% 13.3% 1.5% 20.0%
FiveThirtyEight[453] March 3, 2020 Until March 2, 2020[d] 26.3% 20.0% 18.2% 14.6% 1.3% 20.9%
Average 26.3% 20.9% 18.5% 14.0% 1.4% 20.5%
Utah primary results (March 3, 2020) 36.1% 18.4% 15.4% 16.2% 0.8% 13.0%
Tabulation of individual polls of the 2020 Utah Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[454] Mar 1–2, 2020 143 (LV) ± 9.0% 27% 29% 7% 6% 22% 6% – 2%[rx] –
Data for Progress[455] Feb 28–Mar 2, 2020 622 (LV) ± 3.9% 23% 17% 7% 3% 29% 19% – 2%[ry] –
Mar 1, 2020 Buttigieg withdraws from the race
HarrisX/University of Utah/Deseret News[456] Feb 22–26, 2020 298 (LV) ± 5.7% 6% 19% 18% 4% 28% 15% – 1%[rz] 8%
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race
Salt Lake Tribune/Suffolk[457] Jan 18–22, 2020 132 (LV) ± 8.5% 12% 10% 5% 3% 27% 14% 5% 4%[sa] 21%

Vermont primary

The Vermont Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Bernie
Sanders		 Elizabeth
Warren		 Joe
Biden		 Michael
Bloomberg		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[458] March 3, 2020 February 4–March 2, 2020 52.0% 14.0% 10.7% 10.3% 1.0% 12.0%
RealClear Politics[459] March 3, 2020 Insufficient recent polling to supply an average.
FiveThirtyEight[460] March 3, 2020 until March 2, 2020[d] 53.0% 14.2% 10.4% 8.9% 0.9% 12.6%
Average 52.5% 14.1% 10.55% 9.6% 0.95% 12.3%
Vermont primary results (March 3, 2020) 50.6% 12.5% 21.9% 9.4% 0.8% 4.8%
Tabulation of individual polls of the 2020 Vermont Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Other Un-
decided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[461] Mar 1–2, 2020 147 (LV) ± 11.0% 11% 16% 5% 2% 48% 17% 2%[sb] –
Data for Progress[462] Feb 28–Mar 2, 2020 236 (LV) ± 6.9% 16% 8% 1% – 57% 16% 2%[sc] –
Mar 1, 2020 Buttigieg withdraws from the race
Vermont Public Radio[463] Feb 4–10, 2020 332 (LV) ± 4.0% 5% 7% 9% 4% 51% 13% 2%[sd] 7%

Virginia primary

The Virginia Democratic primary was held on March 3, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
Polled		 Joe
Biden		 Bernie
Sanders		 Michael
Bloomberg		 Elizabeth
Warren		 Tulsi
Gabbard		 Un-
decided[a]
270 to Win[464] March 3, 2020 Until March 3, 2020 28.8% 20.0% 17.3% 10.3% 0.7% 23.9%[se]
RealClear Politics[465] March 3, 2020 Until March 3, 2020 44.0% 24.5% 14.0% 15.0% 0.0% 2.5%
FiveThirtyEight[466] Mar 3, 2020 until Mar 3, 2020 [d] 39.9% 21.0% 13.2% 12.3% 0.5% 13.1%
Average 37.6% 21.8% 14.1% 12.5% 0.4% 13.2%
Virginia primary results (March 3, 2020) 53.3% 23.1% 9.7% 10.8% 0.9% 2.2%
Tabulation of individual polls of the 2020 Virginia Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Un-
decided
Mar 2, 2020 Klobuchar withdraws from the race
Swayable[467] Mar 1–2, 2020 1,435 (LV) ± 4.0% 36% 20% – 4% – 3% – 20% 11% 6%[sf] –
AtlasIntel[468] Mar 1–2, 2020 545 (LV) ± 4.0% 42% 11% – 1% – 1% – 28% 10% 3%[sg] 4%
Change Research[469] Mar 1–2, 2020 510 (LV) – 45% 10% – – – 4% – 25% 13% 3%[sh] –
Data for Progress[470] Feb 28–Mar 2, 2020 327 (LV) ± 5.4% 39% 18% – – – – – 24% 17% 1%[si] –
Mar 1, 2020 Buttigieg withdraws from the race
Data for Progress[471] Feb 23 – 25, 2020 499 (LV) ± 4.5% 19% 17% – 12% – 5% – 28% 17% 2%[sj] –
Monmouth University[472] Feb 13 – 16, 2020 400 (LV) ± 4.9% 18% 22% – 11% – 9% – 22% 5% 1%[sk] 11%
51%[sl] – – – – – – 38% – 4%[sm] 7%
– 47%[sn] – – – – – 41% – 5%[so] 7%
– – – 42%[sp] – – – 44% – 7%[sq] 7%
– – – – – 42%[sr] – 45% – 6%[ss] 7%
Christopher Newport University[473] Feb 3 – 23, 2020 561 (LV) ± 4.3% 22% 13% – 8% – 5% – 17% 8% 6%[st] 16%[su]
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Nov 1, 2019 O'Rourke withdraws from the race
University of Mary Washington[474] Sep 3 – 15, 2019 882 (RV) ± 3.3% 23% – 1% 4% 5% 2% 1% 9% 9% 46%[sv] –
Hampton University[475] May 29 – Jun 6, 2019 1,126 (RV) ± 4.3% 36% – 2% 11% 7% <1% 3% 17% 13% 10%[sw] –
Change Research[476] Apr 26–30, 2019 551 (LV) ± 4.2% 41% – 3% 12% 5% 1% 4% 20% 10% 5%[sx] –

Idaho primary

The Idaho Democratic primary is scheduled to take place on March 10, 2020.[18]

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Tulsi
Gabbard		 Bernie
Sanders		 Other Undecided
Swayable[477] Mar 8–9, 2020 833 (LV) ± 7% 52% 2% 37% 9% –
Data for Progress[478] Mar 7–9, 2020 329 (LV) ± 5.4% 51% 2% 47% – –

Michigan primary

The Michigan Democratic primary is scheduled to take place on March 10, 2020.[18]

Polling aggregation
Source of poll aggregation Date updated Dates polled Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Other/
Undecided[sy]
270 to Win[479] Mar 10, 2020 Mar 4–9, 2020 57.0% 32.3% 1.3% 9.4%
RealClear Politics[480] Mar 10, 2020 Mar 4–9, 2020 55.7% 33.3% 1.3% 9.7%
FiveThirtyEight[481] Mar 10, 2020 until Mar 9, 2020[sz] 55.3% 31.9% 1.2% 11.6%
Average 56.0% 32.5% 1.3% 10.2%
Michigan primary results (March 10, 2020) 52.9% 36.4% 0.6% 10.1%
Tabulation of individual polls of the 2020 Michigan Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Swayable[482] Mar 9, 2020 3,126 (LV) ± 3.0% 62% – – – – – – 28% – – 10%[ta] –
AtlasIntel[483] Mar 7–9, 2020 528 (LV) ± 4.0% 48% 3% – – – – – 40% 1% – 3%[tb] 5%
Data for Progress[484] Mar 7–9, 2020 320 (LV) ± 5.5% 59% – – – – – – 38% – – 2%[tc] –
Mitchell Research & Communications[485] Mar 8, 2020 602 (LV) ± 4.0% 54% 1% – 1% – 1% – 33% 3% – 3%[td] 5%
Target Insyght[486] Mar 8, 2020 600 (LV) ± 4.0% 65% 2% – – – 1% – 24% 3% – 3%[te] 1%
Concord Public Opinion Partners/
The Welcome Party[487]		 Mar 7–8, 2020 305 (LV) – 54% – – – – – – 23% – – 1%[tf] 22%
YouGov/Yahoo News[488] Mar 6–8, 2020 –(RV)[tg] ± 5.8% 54% – – – – – – 42% – – – –
Monmouth University[489] Mar 5–8, 2020 411 (LV) ± 4.8% 51% 3% – <1% – <1% – 36% 1% – 7%[th] 2%
ROI Rocket[490] Mar 4–8, 2020 1,000 (LV) ± 3.1% 55% – – – – – – 45% – – – –
The Progress Campaign (D)[491] Mar 3–7, 2020 417 (RV) ± 4.7% 51% – – – – – – 44% – – 1% 4%[ti]
EPIC-MRA/Detroit Free Press[492] Mar 4–6, 2020 400 (LV) ± 4.9% 51% – – – – – – 27% – – 9%[tj] 13%[tk]
Mar 5, 2020 Warren withdraws from the race
Mar 4, 2020 Bloomberg withdraws from the race
Mar 2, 2020 Klobuchar withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
GlenGariff Group Inc./Detroit News/WDIV-TV[493] Feb 28 – Mar 2, 2020 600 (LV) ± 4.0% 29% 11% – 6% – 3% – 23% 7% – 6%[tl] 16%
Feb 29, 2020 South Carolina primary; Steyer withdraws from the race after close of polls
YouGov/University of Wisconsin-Madison[494] Feb 11–20, 2020 662 (LV) – 16% 13% – 11% – 8% – 25% 13% – – 14%[tm]
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
Baldwin Wallace University/Oakland
University/Ohio Northern University[495]		 Jan 8–20, 2020 477 (RV) – 27% 9.1% – 6.3% – 1.9% – 21.6% 13.6% 3.5% 5.3%[tn] 10.6%
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Emerson College[496] Oct 31 – Nov 3, 2019 454 ± 4.6% 34% – 3% 8% 3% 0% – 28% 19% 2% 3%[to] –
Nov 1, 2019 O'Rourke withdraws from the race
Siena Research/New York Times[497] Oct 13–26, 2019 203 – 30% – 0% 3% 0% 1% 0% 17% 21% 1% 1%[tp] 23%
Kaiser Family Foundation[498] Sep 23 – Oct 15, 2019 208 (LV) – 19% – 1% 7% 2% 1% 1% 15% 25% 1% 0%[tq] 27%
Denno Research[499] Sep 21–24, 2019 217 – 27% – 1% 4% 4% 1% 1% 12% 23% 1% 4%[tr] 23%[ts]
Climate Nexus[500] Jul 14–17, 2019 324 (LV) – 35% – 2% 4% 8% 1% 1% 16% 14% 1% 2%[tt] 13%[tu]
Zogby Analytics[501] May 23–29, 2019 268 ± 6.0% 27% – 1% 9% 7% 1% 4% 18% 8% 2% 5%[tv] –
Denno Research[502] May 8–10, 2019 235 – 37% – 3% 5% 4% 1% 1% 16% 9% 0% 4%[tw] 23%
Apr 25, 2019 Biden announces his candidacy
Apr 14, 2019 Buttigieg announces his candidacy
Mar 14, 2019 O'Rourke announces his candidacy
Emerson College[503] Mar 7–10, 2019 317 ± 5.5% 40% – 3% 0% 12% 5% 2% 23% 11% – 4%[tx] –

Mississippi primary

The Mississippi Democratic primary is scheduled to take place on March 10, 2020.[18]

Polling aggregation
Source of poll aggregation Date updated Dates polled Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Other/
Undecided[a]
270toWin[504] March 10, 2020 March 4–9, 2020 72.5% 25.0% 0.5% 2.0%
FiveThirtyEight[505] March 10, 2020 until March 9, 2020[d] 70.7% 23.4% 0.4% 5.5%
Average 71.6% 24.2% 0.5% 3.7%
Mississippi primary results (March 10, 2020) 81.1% 14.8% 0.4% 3.7%
Tabulation of individual polls of the 2020 Mississippi Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Swayable[506] Mar 8–9, 2020 1,247 (LV) ± 4.0% 68% – – – 28% – 4%[ty] –
Data for Progress[507] Mar 4–7, 2020 340 (LV) ± 5.1% 77% – – – 22% – 1%[tz] –
Mar 5, 2020 Warren withdraws from the race
Mar 4, 2020 Bloomberg withdraws from the race
Mar 2, 2020 Klobuchar withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
NBC News/SurveyMonkey[508] Jul 2–16, 2019 282 (RV) ± 4.2% 47% 3% 3% 8% 21% 7% 5%[ua] 3%
Chism Strategies/Millsaps College[509] Jun 20–21, 2019 523 (LV) ± 4.3% 50% 2% 2% 5% 7% 7% 6%[ub] 21%

Missouri primary

The Missouri Democratic primary is scheduled to take place on March 10, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[510] March 10, 2020 March 4–9, 2020 57.6% 34.4% 2.7% 5.3%
RealClear Politics[511] March 10, 2020 March 4–9, 2020 61.0% 30.7% 2.5% 5.8%
FiveThirtyEight[512] March 10, 2020 until March 9, 2020[d] 60.3% 32.6% 2.5% 4.6%
Average 59.6% 32.6% 2.6% 5.2%
Missouri primary results (March 10, 2020) 60.1% 34.6% 0.7% 4.6%
Tabulation of individual polls of the 2020 Missouri Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Swayable[513] Mar 9, 2020 2,037 (LV) ± 3.0% 57% – – – – – 36% – 8%[uc] –
Øptimus[514] Mar 7–9, 2020 402 (LV) ± 5.4% 68% – – – – – 29% – 3%[ud] –
Data for Progress[515] Mar 4–7, 2020 348 (LV) ± 5.3% 62% – – – – – 32% 4% 2%[ue] –
Mar 5, 2020 Warren withdraws from the race
Remington Research Group/Missouri Scout[516] Mar 4–5, 2020 1,040 (LV) ± 3.0% 53% – – – – – 31% – 10%[uf] 6%
Emerson Polling/Nexstar[517] Mar 4–5, 2020 425 (LV) ± 4.7% 48% – – – – – 44% – 8%[ug] <6%
Mar 4, 2020 Bloomberg withdraws from the race
Mar 2, 2020 Klobuchar withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
The Progress Campaign (D)[518] Feb 16–23, 2020 294 (RV) ± 5.1% 29% 14% 13% – 4% – 23% 12% 4%[uh] –
Americana Analytics[519] Feb 20–21, 2020 1,198 (LV) ± 2.83% 22% 17% 11% – 9% – 11% 10% 1%[ui] 17%
Remington Research Group[520] Jan 22–23, 2020 1,460 (LV) – 39% 14% 6% – 8% – 7% 9% 3%[uj] 14%
Dec 3, 2019 Harris withdraws from the race
Nov 1, 2019 O'Rourke withdraws from the race
Show Me Victories[521] Sept 13–16, 2019 400 ± 5% 34% – 10% 9% 1% 4% 14% 22% 8%[uk] –
Remington Research Group[522] Jul 10–11, 2019 1,122 – 43% – 5% 13% – 1% 4% 15% – 19%

North Dakota caucus

The North Dakota Democratic caucus is scheduled to take place on March 10, 2020.[18]

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Tulsi
Gabbard		 Bernie
Sanders		 Other Undecided
Swayable[523] Mar 7–9, 2020 383 (LV) ± 9% 65% 0% 31% 4% –

Washington primary

The Washington Democratic primary is scheduled to take place on March 10, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Un-
decided[ul]
270 to Win[524] Mar 10, 2020 Feb 15 – Mar 9, 2020 33.5% 34.0% 1.3% 34.7%
RealClear Politics[525] Mar 9, 2020 No averages at this time
FiveThirtyEight[526] Mar 10, 2020 until Mar 9, 2020[d] 39.8% 37.1% 1.4% 21.7%
Average 36.65% 36.55% 1.35% 28.2%
Tabulation of individual polls of the 2020 Washington Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Jay
Inslee		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Swayable[527] Mar 9, 2020 1,840 (LV) ± 3.0% 39% – – – – – 37% – – 25%[um] –
Data for Progress[528] Mar 7–9, 2020 497 (LV) ± 5.1% 49% – – – – – 43% 6% – 2%[un] –
Survey USA/KING-TV[529] Mar 4–6, 2020 550 (LV) ± 5.4% 36% – – – – – 35% 10% – 13%[uo] 5%
Mar 5, 2020 Warren withdraws from the race
Data for Progress[530] Mar 4–5, 2020 737 (LV) ± 3.6% 47% – – – – – 44% 5%[up] – 3%[uq] –
Mar 4, 2020 Bloomberg withdraws from the race
Mar 2, 2020 Klobuchar withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
Elway Research/Cascade Public Media[531] Feb 15–18, 2020 404 (LV) ± 5.0% 10% 15% 9% – – 11% 21% 11% 0% 2%[ur] 22%
Feb 11, 2020 Yang withdraws from the race
Survey USA/KING-TV[532] Jan 26–28, 2020 536 (LV) ± 6.2% 21% 12% 8% – – 3% 26% 16% 4% 2%[us] 7%
Dec 3, 2019 Harris withdraws from the race
Aug 21, 2019 Inslee withdraws from the race
Zogby Analytics[533] Jul 22 – Aug 1, 2019 1,265 (LV) ± 2.8% 19% – 5% 9% 6% 1% 18% 14% 2% 11%[ut] 16%

Arizona primary

The Arizona Democratic primary is scheduled to take place on March 17, 2020.[18]

Polling aggregation
Source of poll aggregation Date updated Dates polled Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[534] Mar 17, 2020 Mar 3–16, 2020 50.6% 29.4% 1.0% 19.0%
RealClear Politics[535] Mar 17, 2020 Mar 6–15, 2020 51.7% 33.7% 1.0% 13.6%
FiveThirtyEight[536] Mar 17, 2020 until Mar 16, 2020[d] 51.6% 26.9% 1.1% 20.4%
Average 51.3% 30.0% 1.0% 17.7%
Tabulation of individual polls of the 2020 Arizona Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Swayable[537] Mar 16, 2020 1,167 (LV) ± 5.0% 53% – – – 29% – – 19%[uu] –
Marist/NBC News[538] Mar 10–15, 2020 523 (LV) ± 6.0% 53% – – – 36% – – 8%[uv] 3%
913 (RV) ± 4.5% 50% – – – 37% – – 9%[uw] 5%
Monmouth University[539] Mar 11–14, 2020 373 (LV) ± 5.1% 51% 5% 3% – 31% 3% – 2%[ux] 5%
Latino Decisions/Univision/
Arizona State University[540]		 Mar 6–11, 2020 541 (LV) ± 4.2% 57%[uy] – – – 38%[uy] – – – 5%[uy]
51% – – – 34% – – 6%[uz] 8%
March 4–5, 2020 Bloomberg and Warren withdraw from the race
OH Predictive Insights[541] Mar 3–4, 2020 398 (LV) ± 4.9% 45% 12% – – 17% 13% – 4%[va] 9%
March 1–2, 2020 Buttigieg and Klobuchar withdraw from the race
February 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
Dec 3, 2019 Harris withdraws from the race
OH Predictive Insights[542] Oct 31 – Nov 8, 2019 260 (LV) ± 6.1% 29% – 9% 5% 16% 18% 4% 19%[vb] –
Emerson Polling[543] Oct 25–28, 2019 339 ± 5.2% 28% – 12% 4% 21% 21% 5% 7%[vc] –
Siena Research/New York Times[544] Oct 13–26, 2019 209 – 24% – 5% 3% 16% 15% 1% 1%[vd] 31%
Change Research[545] Sep 27–28, 2019 396 (LV) – 15% – 13% 4% 19% 35% 8% 7%[ve] –
Bendixen&Amandi[546] Sep 9–12, 2019 250 ± 4.3% 29% – 5% 4% 18% 24% 2% 8%[vf] 10%
Zogby Analytics[547] May 23–29, 2019 197 ± 7.0% 35% – 6% 4% 16% 10% 0% 11%[vg] –

Florida primary

The Florida Democratic primary is scheduled to take place on March 17, 2020.[18]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Other/
Undecided[a]
270 to Win[548] Mar 17, 2020 Mar 5–16, 2020 65.5% 23.0% 1.8% 9.7%
RealClear Politics[549] Mar 17, 2020 Mar 6–12, 2020 64.7% 25.7% 2.0% 7.6%
FiveThirtyEight[550] Mar 17, 2020 until Mar 16, 2020 [d] 63.8% 24.7% 1.4% 10.1%
Average 64.7% 24.5% 1.7% 9.1%
Polling from February 12, 2020, to March 17, 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Other Un-
decided
Swayable[551] Mar 16, 2020 4,035 (LV) ± 2.0% 64% – – – 25% – 12%[vh] –
AtlasIntel[552] Mar 14–16, 2020 532 (LV) ± 4.0% 67% – – – 27% – 4%[vi] 2%
Point Blank Political[553] Mar 11–13, 2020 3,165 (LV) ± 2.3% 61%[uy] – – – 32%[uy] – – 7%
57% 2% 2% 0% 29% 4% 1%[vj] 5%
Emerson College/Nexstar[554] Mar 11–12, 2020 434 (LV) ± 4.7% 65% – – – 27% – 2%[vk] 6%
Gravis Marketing[555] Mar 10–12, 2020 516 (LV) ± 4.3% 66% – – – 25% – – 9%
ROI Rocket[556] Mar 6–12, 2020 877 (LV) ± 3.3% 67% – – – 27% – –[vl] –[vl]
Latino Decisions/Univision[557] Mar 6–12, 2020 531 (LV) ± 4.3% 67%[uy] – – – 32%[uy] – – 2%
63% – – – 25% – 8%[vm] 4%
University of North Florida[558] Mar 5–10, 2020 1,502 (LV) ± 2.5% 66% 2% 1% <1% 22% 2% 1%[vn] 7%
St Pete Polls/FloridaPolitics.com[559] Mar 6–8, 2020 2,480 (LV) ± 2.0% 69% 5% 2% 1% 14% 1% 0%[vo] 9%
Point Blank Political[560] Mar 6–8, 2020 3,376 (LV) ± 2.3% 61%[uy] – – – 32%[uy] – – 7%
55% 2% 2% 1% 29% 4% 2%[vp] 7%
Florida Atlantic University[561] Mar 5–7, 2020 399 (LV) ± 4.9% 61% – – – 25% – 3%[vq] 10%
Mar 4–5, 2020 Bloomberg and Warren withdraw from the race
St Pete Polls/FloridaPolitics.com[562] Mar 4, 2020 1,882 (LV) ± 2.3% 61% 14% 1% 1% 12% 5% 0%[vr] 6%
Mar 1–2, 2020 Buttigieg and Klobuchar withdraw from the race
St Pete Polls[563] Feb 25–26, 2020 2,788 (LV) ± 1.9% 34% 25% 8% 4% 13% 5% 1%[vs] 10%
Saint Leo University[564] Feb 17–22, 2020 342 (LV) – 25% 25% 11% 5% 17% 7% 4%[vt] 7%
Florida Southern College[565] Feb 17–21, 2020 313 (LV) ± 5.54% 22% 23% 9% 5% 18% 12% 1%[vu] 9%
St Pete Polls[563] Feb 18–19, 2020 2,412 (LV) ± 2.0% 27% 32% 8% 7% 11% 5% 2%[vv] 10%
Tel Opinion Research/Politico/
Let’s Preserve the American Dream[566]		 Feb 13–18, 2020 800 (LV) ± 3.46% 20% 26% 8% 5% 13% 7% 5%[vw] 16%
St Pete Polls[567] Feb 12–13, 2020 3,047 (LV) ± 1.8% 26% 27% 11% 9% 10% 5% 1%[vx] 11%
Polling before February 11, 2020
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Un-
decided
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
St. Pete Polls[568] Jan 27–28, 2020 2,590 (LV) ± 1.9% 41% 17% – 6% – 5% – 9% 7% 2% 2%[vy] 10%
Tel Opinion Research/Let’s Preserve the American Dream/Politico[569] Jan 21–23, 2020 600 (LV) ± 4% 41%[vz] – – – – – – 21% 18% – – 20%
29% 4% – 4% – 4% – 17% 12% 2% 2%[wa] 28%
Jan 13, 2020 Booker withdraws from the race
Florida Atlantic University[570] Jan 9–12, 2020 494 ± 4.4% 42% 7% 3% 3% – 6% – 16% 10% 5% 5%[wb] 4%[wc]
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Nov 1, 2019 O'Rourke withdraws from the race
Siena College/New York Times[571] Oct 13–26, 2019 650 (RV) ± 4.4% 27% – 0% 5% 1% 2% 0% 13% 19% 0% 1%[wd] 29%
Tel Opinion Research[572] Sep 15–18, 2019 800 (LV) ± 3.54% 43% – – – – – – 10% 26% – – 18%
37% – – 5% 6% – – 9% 18% 2% – 20%
24% – – 2% 3% – – 5% 11% 1% 3%[we] 49%
Florida Atlantic University[573] Sep 12–15, 2019 407 ± 4.9% 34% – 1% 5% 4% 0% 2% 14% 24% 2% 8%[wf] 6%
St. Pete Polls[574] Jun 22–23, 2019 2,022 ± 2.2% 47% – 3% 8% 6% – 2% 8% 12% – 7% 6%
Change Research[575] Jun 16–17, 2019 1,130 ± 2.9% 33% – 2% 15% 7% 2% 3% 20% 15% 3% 2%[wg] –
Quinnipiac University[576] Jun 12–17, 2019 417 ± 5.8% 41% – 1% 8% 6% 1% 1% 14% 12% <1% 1%[wh] 12%
Climate Nexus[577] Jun 7–11, 2019 676 ± 2.6% 32% – 2% 6% 6% 1% 2% 16% 10% 2% 9%[wi] 14%
Zogby Analytics[578] May 23–29, 2019 228 ± 6.5% 34% – 2% 6% 2% 1% 4% 18% 7% 1% 6%[wj] –
Florida Atlantic University[579] May 16–19, 2019 403 ± 4.9% 39% – 1% 9% 7% 1% 5% 12% 12% 1% 14%[wk] –
Tel Opinion Research[580]* May 8, 2019 800 ± 3.5% 39% – 1% 3% 5% 1% 1% 16% 5% – – 28%
Apr 25, 2019 Biden announces his candidacy
Apr 14, 2019 Buttigieg announces his candidacy
Tel Opinion Research[580]* Mar 21, 2019 800 ± 3.5% 37% – 2% – 4% 1% 5% 13% 6% – – 31%
Mar 14, 2019 O'Rourke announces his candidacy
Bendixen & Amandi International[581] Mar 1–4, 2019 300 – 26% 1% 1% 0% 9% 1% 1% 11% 4% 0% 0%[wl] 46%
Feb 19, 2019 Sanders announces his candidacy
Feb 9, 2019 Warren announces her candidacy
Feb 1, 2019 Booker announces his candidacy
Jan 21, 2019 Harris announces her candidacy
Saint Leo University[582] May 25–31, 2018 – – 21% – 3% – 4% – – 11% 7% – 34%[wm] 17%

Illinois primary

The Illinois Democratic primary is scheduled to take place on March 17, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Tulsi
Gabbard		 Un-
decided[a]
270toWin[583] Mar 17, 2020 Mar 7–16, 2020 58.6% 30.2% 2.0% 9.2%
RealClear Politics[584] Mar 17, 2020 Mar 10–12, 2020 60.0% 30.5% –[wn] 9.5%
FiveThirtyEight[585] Mar 17, 2020 until Mar 16, 2020[d] 61.5% 26.6% 1.5% 10.4%
Average 60.0% 29.1% 1.8% 9.1%
Tabulation of individual polls of the 2020 Illinois Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Swayable[586] Mar 16, 2020 1,861 (LV) ± 3.0% 63% – – – – 28% – 10%[wo] –
Emerson College/Nexstar[587] Mar 11–12, 2020 567 (LV) ± 4.1% 57% – – – – 36% – 2%[wp] 6%
Gravis Marketing[588] Mar 10–12, 2020 549 (LV) ± 4.2% 63% – – – – 25% – – 12%
ROI Rocket[589] Mar 6–12, 2020 960 (LV) ± 3.1% 57% – – – – 34% – –[vl] –[vl]
Victory Research[590] Mar 7–9, 2020 1,200 (LV) ± 2.83% 55% – – – – 36% – 1%[wq] 8%
Ogden & Fry/Northwest Side GOP Club[591] Mar 8, 2020 457(LV) ± 4.58% 64% – – – – 32% – 4%[wr] –[ws]
55% – – – – 26% – 2%[wt] 16%
Mar 1–5, 2020 Buttigieg, Klobuchar, Bloomberg, and Warren withdraw from the race
Victory Research[592] Feb 17–19, 2020 1,200(LV) ± 2.83% 20.3% 14.5% 11.4% – 6.3% 25.6% 6.6% 4.4%[wu] 10.9%
Southern Illinois University[593] Feb 10–17, 2020 475 (LV) ± 4.5% 14% 17% 13% – 8% 22% 6% 2%[wv] 17%
Dec 3, 2019 Harris withdraws from the race
Victory Research[594] Nov 27 – Dec 1, 2019 1,500 (RV) ±2.83% 23.2% 3.6% 15.9% 3.2% 2.6% 15.0% 17.4% 12.3%[ww] 6.9%
Victory Research[595] Jul 26–29, 2019 1,200 ± 2.83% 36.1% – 9.3% 8.6% 1.7% 15.2% 12.8% 9.2%[wx] 7.3%

Wisconsin primary

The Wisconsin Democratic primary is scheduled to take place on April 7, 2020.[18]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Other/
Undecided[a]
270 to Win[596] April 5, 2020 March 6–29, 2020 55.3% 37.0% 7.7%
RealClear Politics[597] April 5, 2020 March 6–29, 2020 55.3% 37.0% 7.7%
FiveThirtyEight[598] April 5, 2020 until March 29, 2020 [d] 51.6% 36.0% 12.4%
Average 54.1% 36.7% 9.2%
Tabulation of individual polls of the 2020 Wisconsin Democratic Primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Un-
decided
Marquette University Law School[599] Mar 24–29, 2020 394 (LV) ± 5.9% 62% – – – – – 34% – – – 4%[wy]
Public Policy Polling[600] Mar 10–11, 2020 898(LV) – 55% – – – – – 39% – – 3%[wz] 3%
YouGov/Yahoo News[601] Mar 6–8, 2020 –(RV)[tg] ± 6.4% 49% – – – – – 38% – – – –
Mar 1–5, 2020 Buttigieg, Klobuchar, Bloomberg, and Warren withdraw from the race
Marquette University Law School[602] Feb 19–23, 2020 490 (LV) ± 5.1% 15% 17% – 13% – 11% 29% 9% – 2%[xa] 4%
YouGov/University of Wisconsin-Madison[603] Feb 11–20, 2020 428 (LV) – 13% 13% – 12% – 9% 30% 12% – – 11%[xb]
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
Baldwin Wallace University/Oakland University/Ohio Northern University[604] Jan 8–20, 2020 464 (RV) – 21.8% 8.4% – 7.7% – 3% 28.4% 14.7% 2.2% 2.5%[xc] 10.9%
Jan 13, 2020 Booker withdraws from the race
Marquette University Law School[605] Jan 8–12, 2020 358 (LV) ± 6.3% 23% 6% 1% 15% – 4% 19% 14% 6% 3%[xd] 9%
Fox News[606] Jan 5–8, 2020 671 (LV) ± 3.5% 23% 7% 3% 9% – 4% 21% 13% 3% 6%[xe] 10%
Marquette University Law School[607] Dec 3–8, 2019 358 (LV) ± 6.3% 23% 3% 4% 15% – 3% 19% 16% 3% 3%[xf] 11%
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Marquette University Law School[608] Nov 13–17, 2019 801 (RV) – 30% – 3% 13% 2% 3% 17% 15% 2% 6%[xg] 10%
Siena Research/New York Times[609] Oct 13–26, 2019 292 – 23% – 1% 5% 1% 0% 20% 25% 2% 2%[xh] 19%
Kaiser Family Foundation[610] Sep 23 – Oct 15, 2019 274 (LV) – 17% – 2% 6% 3% 3% 10% 22% 2% 1%[xi] 35%
Fox News[611] Sep 29 – Oct 2, 2019 663 (LV) ± 3.5% 28% – 2% 7% 5% 2% 17% 22% 2% 5%[xj] 9%
Marquette University Law School[612] Aug 25–29, 2019 444 (RV) ± 5.3% 28% – 1% 6% 3% 1% 20% 17% 2% 5%[xk] 13%
Change Research[613] Aug 9–11, 2019 935 (LV) ± 3.2% 20% – 1% 9% 5% 2% 24% 29% 2% 5%[xl] –
Change Research[614] Jun 29 – Jul 4, 2019 1261 (LV) – 18% – 3% 15% 17% 1% 19% 19% 1% 6%[xm] –
Zogby Analytics[615] May 23–29, 2019 238 (LV) ± 6.4% 28% – 2% 7% 7% 3% 13% 14% 0% 2%[xn] –
Apr 25, 2019 Biden announces his candidacy
Zogby Analytics[616] Apr 15–18, 2019 485 (LV) ± 4.5% 24% – 4% 10% 7% 4% 20% 6% 1% 11%[xo] 14%
Apr 14, 2019 Buttigieg announces his candidacy
Emerson College[617] Mar 15–17, 2019 324 (LV) ± 5.4% 24% – 2% 1% 5% 4% 39% 14% 1% 10%[xp] –


Ohio primary

The Ohio Democratic primary was originally scheduled to take place on March 17, 2020.[18] Due to the COVID-19 pandemic, the primary was delayed. Initially, the Governor suggested the primary be held on June 2, 2020,[618] however, further deliberations resulted in the legislature and Governor agreeing on suspending in-person voting, and selecting a mail-in ballot deadline of April 28, 2020.[619]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Other/
Undecided[a]
270 to Win[620] Mar 16, 2020 Mar 10–13, 2020 57.5% 35.0% 7.5%
RealClear Politics[621] Mar 16, 2020 Mar 10–13, 2020 57.5% 35.0% 7.5%
FiveThirtyEight[622] Mar 16, 2020 until Mar 13, 2020 [d] 58.7% 32.3% 9.0%
Average 57.9% 34.1% 8.0%
Tabulation of individual polls of the 2020 Ohio Democratic primary
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign: Politico Story
Swayable[623] Mar 16, 2020 2,027 (LV) ± 3.0% 66% – – – – 24% – – 10%[xq] –
Marist/NBC News[624] Mar 10–13, 2020 486 (LV) ± 5.6% 58% – – – – 35% – – 4%[xr] 4%
830 (RV) ± 4.1% 56% – – – – 36% – – 4%[xs] 4%
Emerson College/Nexstar[625] Mar 11–12, 2020 464 (LV) ± 4.5% 57% – – – – 35% – – 1%[xt] 7%
ROI Rocket[626] Mar 6–12, 2020 880 (LV) ± 3.3% 61% – – – – 33% – – –[vl] –[vl]
Mar 5, 2020 Warren withdraws from the race
Mar 4, 2020 Bloomberg withdraws from the race: NYT Story
Mar 2, 2020 Klobuchar withdraws from the race: NYT Story
Mar 1, 2020 Buttigieg withdraws from the race: NYT Story
Feb 29, 2020 South Carolina primary; Steyer withdraws from the race after close of polls
Feb 11, 2020 New Hampshire primary; Yang and Bennet withdraw from the race after close of polls
Feb 3, 2020 Iowa Caucuses
Baldwin Wallace University/Oakland
University/Ohio Northern University[627]		 Jan 8–20, 2020 428 (RV) – 32.1% 10.1% – 6.1% – 20.8% 10.7% 2.1% 5.7%[xu] 9.8%
Jan 13, 2020 Booker withdraws from the race
Jan 10, 2020 Williamson withdraws from the race
Jan 2, 2020 Castro withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Nov 1, 2019 O'Rourke withdraws from the race
Oct 24, 2019 Ryan withdraws from the race
Climate Nexus[628] Oct 1–7, 2019 443 (LV) – 32% – 3% 5% 6% 13% 21% 3% 17%[xv] –[note 1]
Emerson[629] Sep 29 – Oct 2, 2019 353 (LV) ± 5.2% 29% – 0% 5% 7% 27% 21% 3% 5%[xw] 2%
Quinnipiac[630] Jul 17–22, 2019 556 ± 5.1% 31% – 1% 6% 14% 14% 13% 1% 6%[xx] 11%
Zogby Analytics[631] May 23–29, 2019 222 ± 6.6% 29% – 3% 6% 5% 19% 12% 3% 6%[xy] –

Kansas primary

The Kansas Democratic primary is scheduled to take place on May 2, 2020.[18]

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Tulsi
Gabbard		 Bernie
Sanders		 Other Undecided
Apr 8, 2020 Sanders suspends campaign
Mar 19, 2020 Gabbard withdraws from the race
Public Policy Polling[632] Mar 10–11, 2020 550 (LV) – 59% 3% 35% – 4%

Oregon primary

The Oregon Democratic primary is scheduled to take place on May 19, 2020.[18]

Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Bernie
Sanders		 Joe
Biden		 Undecided Beto
O'Rourke		 Kamala
Harris		 Elizabeth
Warren		 Cory
Booker		 Andrew
Yang		 Pete
Buttigieg		 Other
Zogby Analytics[633] Mar 18–19, 2019 238 ± 6.4% 27% 26% 11% 8% 6% 6% 4% 4% 3% 7% [xz]

Delaware primary

The Delaware Democratic primary was scheduled to take place on April 28, 2020,[18] but was delayed due to the COVID-19 pandemic, and will instead occur on June 2, 2020.[634]

Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Cory
Booker		 Pete
Buttigieg		 Tulsi
Gabbard		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
Mar 19, 2020 Gabbard withdraws from the race
Mar 1–5, 2020 Buttigieg, Klobuchar, Bloomberg, and Warren withdraw from the race
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Data For Progress[635] Nov 15–25, 2019 481 (LV) –[ya] 35% 3% 8% 3% 1% 13% 11% 1% 10%[yb] 15%

Indiana primary

The Indiana Democratic primary was scheduled to take place on May 5, 2020,[18] but was delayed due to the COVID-19 pandemic, and will instead occur on June 2, 2020.[636]

Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
Nov 1, 2019–March 5, 2020 O'Rourke, Harris, Buttigieg and Warren withdraw from the race
We Ask America[637] Apr 29–May 5, 2019 280 ± 5.9% 33% 20% 3% 2% 23% 2% 1%[yc] 15%

Maryland primary

The Maryland Democratic primary was scheduled to take place on April 28, 2020,[18] but was delayed due to the COVID-19 pandemic, and will instead occur on June 2, 2020.[638]

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
Mar 1–5, 2020 Buttigieg, Klobuchar, Bloomberg, and Warren withdraw from the race
Gonzales Research & Media Services[639] Feb 22–28, 2020 331 (LV) ± 5.5% 19% 15% 5% – 4% 23% 8% – 27%
Goucher College[640] Feb 13–19, 2020 371 (LV) ± 5.1% 18% 16% 7% – 6% 24% 6% 4%[yd] 18%
Dec 3, 2019 Harris withdraws from the race
Goucher College[640] Sept 13–19, 2019 300 (LV) ± 5.6% 33% – 5% 6% 1% 10% 21% 9%[ye] 15%

Montana primary

The Montana Democratic primary is scheduled to take place on June 2, 2020.[18] Polls with a sample size of <100 are marked in red to indicate a lack of reliability.

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Steve
Bullock		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
Nov 1, 2019–March 5, 2020 O'Rourke, Bullock, Harris, Yang, Buttigieg and Warren withdraw from the race
Montana State University Billings[641] Oct 7–16, 2019 40 (LV) – 15% 5% 2% 2% 5% 2% 40% No voters 2%[yf] 25%

New Mexico primary

The New Mexico democratic primary is scheduled to take place on June 2, 2020.[18]

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Tulsi
Gabbard		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
Mar 1–19, 2020 Buttigieg, Klobuchar, Bloomberg, Warren, and Gabbard withdraw from the race
Jan 13–Feb 11, 2020 Booker and Yang withdraw from the race
Emerson Polling[642] Jan 3–6, 2020 447 (RV) ± 4.6% 27% 3% 2% 7% 2% 2% 28% 8% 10% 11%[yg] -

Pennsylvania primary

The Pennsylvania Democratic primary was scheduled to take place on April 28, 2020,[18] but was delayed due to the COVID-19 pandemic, and is instead scheduled for June 2, 2020.[643]

Polling Aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Other/
Undecided[a]
270 to Win[644] Mar 18, 2020 Feb 11–Mar 8, 2020 39.5% 28.0% 32.5%
RealClear Politics[645] Feb 23, 2020 Jan 20–Feb 20, 2020 39.5% 28.0% 32.5%
FiveThirtyEight[646] Mar 8, 2020 until Feb 20, 2020[d] 54.4% 29.3% 16.3%
Average 44.5% 28.4% 27.1%
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
YouGov/Yahoo News[647] Mar 6–8, 2020 –(RV)[tg] ± 5.1% 59% – – – – – 31% – – –
Mar 1–5, 2020 Buttigieg, Klobuchar, Bloomberg and Warren withdraw from the race
YouGov/University of Wisconsin-Madison[648] Feb 11–20, 2020 537 (LV) – 20% 19% – 12% – – 25% 9% 5%[yh] 10%[yi]
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race after close of polls
Franklin & Marshall College[649] Jan 20–26, 2020 292 (RV) ± 9.0% 22% 7% – 6% – – 15% 14% 18%[yj] 19%
Baldwin Wallace University/Oakland
University/Ohio Northern University[650]		 Jan 8–20, 2020 502 (RV) – 31.3% 9.1% – 6.5% – – 20.5% 11.5% 8.8%[yk] 11%
Dec 3, 2019–Jan 13, 2020 Harris and Booker withdraw from the race
Nov 24, 2019 Bloomberg announces his candidacy
Nov 1, 2019 O'Rourke withdraws from the race
Franklin & Marshall College[651] Oct 21–27, 2019 226 (RV) ± 8.9% 30% – 1% 8% 1% <1% 12% 18% 15%[yl] 16%
Siena Research/New York Times[652] Oct 13–26, 2019 304 – 28% – 0% 4% 1% 0% 14% 16% 3%[ym] 30%
Kaiser Family Foundation[653] Sep 23–Oct 15, 2019 246 (LV) – 27% – 1% 3% 4% No voters 14% 18% 5%[yn] 29%
Susquehanna Polling and Research Inc.[654] Sep 30–Oct 6, 2019 307 (RV) ± 5.6% 17% – 0% 8% 1% 0% 6% 9% 7%[yo] 52%
Franklin & Marshall College[655] Jul 29–Aug 4, 2019 295 ± 8.7% 28% – 2% 6% 8% 1% 12% 21% 3%[yp] 19%
Zogby Analytics[656] May 23–29, 2019 246 ± 6.3% 46% – 2% 9% 3% 2% 15% 8% 2%[yq] –
Quinnipiac University[657] May 9–14, 2019 431 ± 6.2% 39% – 5% 6% 8% 2% 13% 8% 3%[yr] 12%
Apr 25, 2019 Biden announces his candidacy
Apr 14, 2019 Buttigieg announces his candidacy
Muhlenberg College[658] Apr 3–10, 2019 405 ± 5.5% 28% – 3% 4% 8% 3% 16% 8% 9%[ys] 20%
Emerson College[659] Mar 26–28, 2019 359 ± 5.1% 39% – 4% 6% 5% 5% 20% 11% 10%[yt] –

Georgia primary

The Georgia Democratic primary was originally scheduled to take place on March 24, 2020,[18] but was delayed due to the COVID-19 pandemic, first to May 19, 2020,[660] and then further delayed to June 9, 2020.[661]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
Polled		 Joe
Biden		 Bernie
Sanders		 Undecided[a]
FiveThirtyEight[662] Mar 14, 2020 until Feb 13, 2020[d] 67.3% 30.1% 2.6%
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Bernie
Sanders		 Elizabeth
Warren		 Andrew
Yang		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
The Progress Campaign (D) Mar 12–21, 2020 913 (RV) ± 4.6% 63% – – – 34% – – – 2.3%[yu]
University of Georgia[663] Mar 4–14, 2020 807 ± 3.4% 66% – – – 22% – – 1%[yv] 11%
Mar 5, 2020 Warren withdraws from the race
Mar 4, 2020 Bloomberg withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
Landmark Communications[664] Feb 12, 2020 500 ± 4.3% 32% 14% 5% – 14% 4% – 6%[yw] 26%
Feb 11, 2020 Yang withdraws from the race
Dec 3, 2019 Harris withdraws from the race
SurveyUSA[665] Nov 15–18, 2019 536 ± 5.2% 36% 6% 7% 6% 17% 14% – 5% 9%
Climate Nexus[666] Nov 4–10, 2019 457 ± 3.6% 31% – 4% 4% 14% 14% 2% 11%[yx] 19%
Landmark Communications[667] Sep 18–21, 2019 500 ± 4.1% 41% – 5% 6% 8% 17% 2% 6%[yy] 15%
Change Research[668] Sep 7–11, 2019 755 ± 3.6% 33% – 7% 7% 17% 22% 3% 10%[yz] –
SurveyMonkey[669] Jul 2–16, 2019 402 ± 6.4% 31% – 5% 15% 12% 13% 4% 11%[za] 9%

New York primary

The New York Democratic primary was scheduled to take place on April 28, 2020,[18] but was delayed due to the COVID-19 pandemic, and is instead scheduled for June 23, 2020.[670]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Other/
Undecided[a]
FiveThirtyEight[671] Mar 18, 2020 until Mar 18, 2020[d] 51.7% 28.9% 21.4%
Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Pete
Buttigieg		 Kamala
Harris		 Amy
Klobuchar		 Bernie
Sanders		 Elizabeth
Warren		 Other Un-
decided
Apr 8, 2020 Sanders suspends his campaign
Mar 19, 2020 Gabbard withdraws from the race
Mar 1–5, 2020 Buttigieg, Klobuchar, Bloomberg, and Warren withdraw from the race
Siena College Research Institute[672] Feb 16–20, 2020 315 (RV) – 13% 21% 9% – 9% 25% 11% 1%[zb] 11%
Feb 3, 2020 Iowa caucus is held
Civis Analytics/Data For Progress[673] Jan 13–19, 2020 845 (LV) – 30% 17% 7% – 2% 17% 14% 15%[zc] –
Dec 3, 2019 Harris withdraws from the race
Siena College[674] Nov 12–18, 2019 797 (RV) ± 4.0% 24% – 5% 3% 1% 13% 14% 12%[zd] 29%[ze]
Siena College[675] Oct 6–10, 2019 340 (RV) ± 6.5% 21% – 4% 4% 1% 16% 21% 10%[zf] 24%[zg]
Sep 20, 2019 de Blasio withdraws from the race
Siena College[676]* Sep 8–12, 2019 359 (RV) ± 6.1% 22% – 3% 4% 1% 15% 17% 4%[zh] 34%
Aug 28, 2019 Gillibrand withdraws from the race

Head-to-head polls

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Bill
de Blasio		 Kirsten
Gillibrand		 Other Undecided
Siena College[677] Jun 2–6, 2019 385 – 25% 56% 11% 8%

New Jersey primary

The New Jersey Democratic primary was scheduled to take place on June 2, 2020,[18] but was delayed due to the COVID-19 pandemic, and is instead scheduled for July 7, 2020.[678]

Polling aggregation
Source of poll aggregation Date
updated		 Dates
polled		 Joe
Biden		 Bernie
Sanders		 Undecided[a]
FiveThirtyEight[679] Mar 8, 2020 until Feb 18, 2020[d] 35.5% 30.5% 34.0%
Poll source Date(s)
administered		 Sample
size		 Margin
of error		 Joe
Biden		 Michael
Bloomberg		 Cory
Booker		 Pete
Buttigieg		 Kamala
Harris		 Beto
O'Rourke		 Bernie
Sanders		 Elizabeth
Warren		 Other Undecided
Mar 5, 2020 Warren withdraws from the race
Mar 4, 2020 Bloomberg withdraws from the race
Mar 3, 2020 Super Tuesday
Mar 2, 2020 Klobuchar withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
Feb 29, 2020 South Carolina primary; Steyer withdraws from the race after close of polls
Feb 22, 2020 Nevada caucuses
FDU[680] Feb 12–16, 2020 357 (RV) – 16% 23% – 10% – – 25% 8% 7%[zi] 11%
Feb 11, 2020 New Hampshire primary; Yang withdraws from the race
Feb 3, 2020 Iowa caucuses
Emerson College[681] Jan 16–19, 2020 388 ± 4.9% 28% 9% – 6% – – 25% 15% 16%[zj] –
Jan 13, 2020 Booker withdraws from the race
Dec 3, 2019 Harris withdraws from the race
Nov 24, 2019 Bloomberg announces his candidacy
Monmouth University[682] Sep 12–16, 2019 713 ± 3.7% 26% – 9% 6% 6% 0% 18% 20% 7%[zk] 8%
Change Research[683] Aug 16–20, 2019 1176 ± 2.9% 26% – 5% 12% 8% 2% 21% 23% 3%[zl] –

Connecticut primary

The Connecticut Democratic primary was scheduled to take place on April 28, 2020,[18] but was delayed due to the COVID-19 pandemic, first to June 2, 2020,[684] and then further delayed to August 11, 2020.[685]

Poll source Date(s)
administered		 Sample
size[g]		 Margin
of error		 Joe
Biden		 Bernie
Sanders		 Pete
Buttigieg		 Elizabeth
Warren		 Other Undecided
Apr 8, 2020 Sanders suspends his campaign
GreatBlue Research/Sacred Heart University/Hartford Courant[686] Mar 24–Apr 3, 2020 – (RV)[zm] – 52.0% 32.5% – – 1.4%[zn] 14.1%
GreatBlue Research/Sacred Heart University/Hartford Courant[687] Feb 24–Mar 12, 2020 383 (RV) – 42.1% 24.5% – – 19.5%[zo] 13.8%
Mar 5, 2020 Warren withdraws from the race
Mar 1, 2020 Buttigieg withdraws from the race
GreatBlue Research/Sacred Heart University/Hartford Courant[688] Dec 16, 2019–Jan 2, 2020 348 (RV) – 33.0% 19.3% 11.2% 17.8% 3.4%[zp] 15.2%

Notes

References

See also

External links

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