2024 United States Senate election in Maine
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The 2024 United States Senate election in Maine was held on November 5, 2024, to elect a member of the U.S. Senate to represent the state of Maine. Incumbent independent Senator Angus King won re-election to a third term, defeating Democratic nominee David Costello, Republican nominee Demitroula Kouzounas, and independent Jason Cherry. Primary elections took place on June 11, 2024.[1]
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November 5, 2024
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King: 30–40% 40–50% 50–60% 60–70% 70–80% >90% Kouzonunas: 40–50% 50–60% 60–70% 70–80% 80–90% >90% Costello: 80–90% Tie: 40–50% 50% No data | |||||||||||||||||||||
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This election coincided with five referendum questions, including a referendum to change the state flag, as well as the presidential election, U.S. House elections for the state's two congressional districts, and various other state, county and local elections.
King won re-election to a third term in office with 52.06% of the vote. He outperformed Kamala Harris in the concurrent presidential election, winning by a margin of 17.42 percentage points to Harris's margin of 6.94 percentage points. He won six counties that Harris lost.
Independents
Candidates
Declared
- Jason Cherry, attorney and former FBI agent[2]
- Angus King, incumbent U.S. senator[3]
Endorsements
Angus King
- U.S. senators
- Joe Manchin, West Virginia (2010–2025) (Independent; Democratic until 2024)[4]
- Labor unions
- Organizations
Fundraising
| Campaign finance reports as of July 24, 2024 | |||
|---|---|---|---|
| Candidate | Raised | Spent | Cash on hand |
| Angus King (I) | $4,802,784 | $2,069,527 | $3,118,927 |
| Jason Cherry (I) | $110,000 | $95,478 | $6,011 |
| Source: Federal Election Commission[14] | |||
Republican primary
Candidates
Nominee
- Demitroula "Demi" Kouzounas, former chair of the Maine Republican Party[15]
Endorsements
Demitroula "Demi" Kouzounas
- Statewide officials
- Paul LePage, former governor of Maine (2011–2019)[16]
Fundraising
| Campaign finance reports as of May 22, 2024 | |||
|---|---|---|---|
| Candidate | Raised | Spent | Cash on hand |
| Demi Kouzounas (R) | $300,712[a] | $55,731 | $244,980 |
| Source: Federal Election Commission[14] | |||
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Republican | Demi Kouzounas | 58,832 | 100.0% | |
| Total votes | 58,832 | 100.0% | ||
Democratic primary
Candidates
Nominee
- David Costello, consultant and former deputy secretary of the Maryland Department of the Environment[18]
Withdrawn
- Natasha Alcala, fashion designer[19]
Fundraising
| Campaign finance reports as of May 22, 2024 | |||
|---|---|---|---|
| Candidate | Raised | Spent | Cash on hand |
| David Costello (D) | $72,408[b] | $13,302 | $59,424 |
| Source: Federal Election Commission[14] | |||
Results
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Democratic | David Costello | 54,537 | 100.0% | |
| Total votes | 54,537 | 100.0% | ||
General election
Predictions
| Source | Ranking | As of |
|---|---|---|
| The Cook Political Report[20] | Solid I | November 9, 2023 |
| Inside Elections[21] | Solid I | November 9, 2023 |
| Sabato's Crystal Ball[22] | Safe I | September 5, 2024 |
| Decision Desk HQ/The Hill[23] | Safe I | October 11, 2024 |
| Elections Daily[24] | Safe I | May 4, 2023 |
| CNalysis[25] | Solid I | November 21, 2023 |
| RealClearPolitics[26] | Solid I | August 5, 2024 |
| Split Ticket[27] | Safe I | October 23, 2024 |
| 538[28] | Likely I | October 23, 2024 |
Fundraising
| Campaign finance reports as of September 30, 2024 | |||
|---|---|---|---|
| Candidate | Raised | Spent | Cash on hand |
| Angus King (I) | $4,802,784 | $2,069,527 | $3,118,927 |
| Demi Kouzounas (R) | $503,998[c] | $170,805 | $333,192 |
| David Costello (D) | $109,637[d] | $24,063 | $85,894 |
| Jason Cherry (I) | $110,000[e] | $95,478 | $6,011 |
| Source: Federal Election Commission[14] | |||
Polling
| Poll source | Date(s) administered |
Sample size[f] |
Margin of error |
Angus King (I) |
Demi Kouzounas (R) |
David Costello (D) |
Other | Undecided |
|---|---|---|---|---|---|---|---|---|
| University of New Hampshire[29] | October 29 – November 2, 2024 | 1,485 (LV) | ± 2.4% | 50% | 35% | 7% | 1%[g] | 6% |
| SurveyUSA[30][A] | October 24–29, 2024 | 1,079 (LV) | ± 3.6% | 54% | 28% | 8% | 3%[h] | 8% |
| Pan Atlantic Research[31] | September 5–15, 2024 | 812 (LV) | ± 3.5% | 53% | 23% | 8% | 1%[i] | 16% |
| University of New Hampshire[32] | August 15–19, 2024 | 951 (LV) | ± 3.2% | 43% | 33% | 9% | 4%[j] | 12% |
| Digital Research[33] | April 8–30, 2024 | 609 (RV) | ± 4.0% | 57% | 28% | 12% | – | 3% |
Results
| Party | Candidate | Votes | % | ±% | |
|---|---|---|---|---|---|
| Independent | Angus King (incumbent) | 427,331 | 52.06% | −2.25 | |
| Republican | Demi Kouzounas | 284,338 | 34.64% | −0.59 | |
| Democratic | David Costello | 88,891 | 10.83% | +0.38 | |
| Independent | Jason Cherry | 20,222 | 2.46% | N/A | |
| Total votes | 820,782 | 100.00% | N/A | ||
| Independent hold | |||||
By county
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Counties that flipped from Independent to Republican
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By congressional district
King won both congressional districts, which both elected Democrats.[35]
| District | King | Kouzounas | Costello | Representative |
|---|---|---|---|---|
| 1st | 55% | 30% | 12% | Chellie Pingree |
| 2nd | 49% | 40% | 9% | Jared Golden |
Notes
- $154,001 of this total was self-funded by Kouzounas
- $50,000 of this total was self-funded by Costello
- $314,001 of this total was self-funded by Kouzounas
- $77,000 of this total was self-funded by Costello
- $55,000 of this total was self-funded by Cherry
- Key:
A – all adults
RV – registered voters
LV – likely voters
V – unclear - Cherry (I) with 1%
- Cherry (I) with 3%
- Cherry (I) with 1%
- Cherry (I) with 3%; "Another candidate" with 1%
Partisan clients
- Poll sponsored by Bangor Daily News and FairVote