2026 United States Senate elections

All 33 Class 2 Senate seats and two Class 3 seats are up for election in 2026. Class 2 currently consists of 20 Republicans and 13 Democrats.^[2] Democrats are defending two seats in states won by Donald Trump in 2024, in both cases by less than 3 percentage points: Michigan, where incumbent Gary Peters is not running for reelection; and Georgia, where the incumbent is Jon Ossoff. Michigan elected Democrat Elissa Slotkin to the Senate in 2024 by 0.3 percentage points. Georgia did not have a Senate election in 2024, although in the most recent Senate election, in 2022, Democrat Raphael Warnock won by three points in a runoff.^[3][4]

Five incumbent Democratic senators represent states won by Kamala Harris by single-digit margins in 2024: New Hampshire's Jeanne Shaheen, Minnesota's Tina Smith, Virginia's Mark Warner, New Jersey's Cory Booker, and New Mexico's Ben Ray Luján.^[3] Shaheen and Smith are not running for reelection.^[5] Susan Collins's seat in Maine is the only seat being defended by a Republican in a state that Kamala Harris won in 2024.^[6] Republican Thom Tillis of North Carolina is retiring^[7] from the Senate in a state that Trump won by a single-digit margin in 2024.^[3]

The 2026 Senate map is considered favorable to Republicans, even though Democrats are defending 13 seats and Republicans 22. Most rating groups identify two Republican-held seats as highly competitive and two others as somewhat competitive. By contrast, Democrats must flip at least four seats to win a majority while defending two highly vulnerable seats and two others viewed as somewhat vulnerable.^[8][9][10] Pollsters have found Democrats' chances to flip the Senate to be improving, partially because of independent candidates in states such as Nebraska and Montana, as well as primary results in states such as Iowa and Texas.^[11]

Each block represents one of the one hundred seats in the U.S. Senate. "D#" is a Democratic senator, "I#" is an Independent senator, and "R#" is a Republican senator. They are arranged so that the parties are separated and a majority is clear by crossing the middle.

Multiple sites and political pundits have published predictions of competitive seats. These predictions have considered factors such as the strength of the incumbent (if the incumbent was running for reelection) and the other candidates, and the state's partisan lean, reflected in part by the state's Cook Partisan Voting Index rating. The predictions typically assign ratings to each seat, indicating the predicted advantage that a party had in winning that seat. Most election predictors use:

• "tossup": no advantage
• "tilt" (used by some predictors): advantage that is not quite as strong as "lean"
• "lean": slight advantage
• "likely": significant, but surmountable, advantage
• "safe" or "solid" or "strong": near-certain chance of victory

These are seats that polling and predictions currently have listed as at least somewhat close.

Quick facts Nominee, Party ...

Alabama election

← 2020 2032 →

Nominee Barry Moore Everett Wess Party Republican Democratic

Incumbent U.S. senator Tommy Tuberville Republican

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One-term Republican Tommy Tuberville previously said he planned to seek reelection,^[111] but announced on May 27, 2025, that he would instead run for governor of Alabama in 2026.^[14] He was elected to the U.S. Senate in 2020 with 60.1% of the vote.

The Republican primary took place on May 19. The candidates included former Navy SEAL Jared Hudson,^[112] state Attorney General Steve Marshall,^[113] and U.S. Representative Barry Moore.^[114] No candidate won a majority of the vote, so the top two vote-getters, Hudson and Moore, advanced to a June 16 runoff, which Moore won.^[115]

No candidate won a majority in the May 19 Democratic primary, so small business owner Dakarai Larriett^[116] and attorney Everett Wess^[117] advanced to a June 16 runoff, which Wess won.^[115]

Two-term Republican Dan Sullivan was reelected in 2020 with 53.9% of the vote. He is running for reelection to a third term.^[118]

A nonpartisan primary election will be held on August 18, 2026, from which the top four candidates will advance to the general election, which will be conducted with ranked-choice voting.

Sullivan will be joined in the primary by Republicans Dustin Darden, Gerald Heikes, Fred Grauberger, and Richard Benedict Mayers, all of whom are perennial candidates.^[119] Former U.S. Forest Service employee Dan J. Sullivan ran as a Republican before being disqualified by the Alaska Division of Elections on June 16. Before he was disqualifed, some Republicans said his candidacy could confuse people who intend to vote for incumbent senator Dan Sullivan.^[120]

Former Democratic U.S. Representative Mary Peltola announced her candidacy for the Senate in January 2026^[121] after initially filing paperwork to run for her former House seat.^[122] Other Democrats seeking election include former flight attendant Carol Hafner and LGBTQ+ activist David Leslie.^[119]

Several third-party and independent candidates are also running, including Scott Kohlhaas of the Libertarian Party, Richard Grayson of the Green Party, Earl D. "Skip" Southworth of the Alaskan Party, and independents Sid Hill, Shirley Saucerman, and Robert Reece.^[119]

Quick facts Nominee, Party ...

Arkansas election

← 2020 2032 →

Nominee Tom Cotton Hallie Shoffner Party Republican Democratic

Incumbent U.S. senator Tom Cotton Republican

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Two-term Republican Tom Cotton was reelected in 2020 with 66.5% of the vote. Cotton is running for reelection,^[123] having secured the Republican nomination on March 3, 2026.

Rice farmer Hallie Shoffner secured the Democratic nomination on the same day.^[124]

One-term Democrat John Hickenlooper, elected with 53.5% of the vote in 2020, is running for reelection for a second term, and has said it will be his last term.^[125][126] Hickenlooper is being challenged by progressive state Senator Julie Gonzales in the Democratic primary.^[127][128]

After the Colorado Republican Assembly on April 11, 2026, state Senator Mark Baisley was selected as the presumptive Republican nominee with 46% of the vote, as no other candidates surpassed the 30% threshold.^[129][130]

Two-term Democrat Chris Coons was reelected in 2020 with 59.4% of the vote. He has filed paperwork to run for reelection.^[131] Former federal employee Christopher Beardsley is also running in the Democratic primary.^[132]

Former Democratic state Senator and Independent Party of Delaware nominee for U.S. Senate in 2024 Michael Katz^[133][134] and U.S. Army War College instructor John Shulli^[135][133] are running in the Republican primary.

Three-term Republican Marco Rubio was reelected in 2022 with 57.68% of the vote. He resigned on January 20, 2025, following his confirmation as U.S. Secretary of State. Governor Ron DeSantis announced he would appoint Florida Attorney General Ashley Moody as interim senator until a 2026 special election,^[136] and Moody has since declared her candidacy to serve the remainder of Rubio's term.^[137]

State Representative Angie Nixon^[138] and Alexander Vindman, former director for European affairs at the U.S. National Security Council, a whistleblower in the 2019 Trump–Ukraine scandal, and the twin brother of Virginia U.S. Representative Eugene Vindman, are running for the Democratic nomination.^[139][140]

Quick facts Nominee, Party ...

Georgia election

← 2020–21 2032 →

Nominee Jon Ossoff Mike Collins Party Democratic Republican

Incumbent U.S. senator Jon Ossoff Democratic

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One-term Democrat Jon Ossoff is running for a second term.^[141] He was narrowly elected in a 2021 runoff with 50.6% of the vote. As the only person to submit the necessary number of signatures to appear on the primary ballot, Ossoff is the Democratic nominee.^[142]

The Republican primary took place on May 19. U.S. Representative Mike Collins^[143] and former University of Tennessee football coach Derek Dooley^[144] advanced to a June 16 runoff, which Collins won.^[145]

Quick facts Nominee, Party ...

Idaho election

← 2020 2032 →

Nominee Jim Risch David Roth Party Republican Democratic

Incumbent U.S. senator Jim Risch Republican

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Three-term Republican Jim Risch was reelected in 2020 with 62.6% of the vote and is running for a fourth term.^[146] He won the Republican nomination on May 19, defeating data engineer and 2020 Libertarian nominee for Idaho's 1st congressional district Joe Evans, entrepreneur Denny LaVe, and engineer Josh Roy.^[147]

David Roth, a realtor and the 2022 U.S. Senate nominee,^[148] defeated Nickolas Bonds and Brad Moore^[147] in the Democratic primary on May 19.^[149]

Matt Loesby, the nominee for Idaho's 1st congressional district in 2024,^[150] is running as a Libertarian. Former Democratic state representative Todd Achilles^[151] and software developer Natalie Fleming^[147] are running as independents.

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Illinois election

← 2020 2032 →

Nominee Juliana Stratton Don Tracy Party Democratic Republican

Incumbent U.S. senator Dick Durbin Democratic

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Five-term Democrat and Senate Democratic Whip Dick Durbin was reelected in 2020 with 54.9% of the vote. On April 23, 2025, he announced he would not run for reelection.^[152]

On March 17, 2026, incumbent Lieutenant Governor Juliana Stratton won the Democratic primary, defeating a crowded field, including U.S. Representatives Raja Krishnamoorthi and Robin Kelly.^[153]

Former Illinois Republican Party Chairman Don Tracy easily won the Republican primary the same day, defeating attorney Jeannie Evans and Polish American Congress PAC national director Casey Chlebek.^[153]

Quick facts Nominee, Party ...

Iowa election

← 2020 2032 →

Nominee Ashley Hinson Josh Turek Party Republican Democratic

Incumbent U.S. senator Joni Ernst Republican

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Two-term Republican Joni Ernst was reelected in 2020 with 51.7% of the vote.^[154] On September 2, 2025, she announced that she would not seek reelection to a third term, after being criticized for comments about reductions in Medicaid.^[155]

U.S. Representative Ashley Hinson easily defeated former state Senator Jim Carlin in the June 2, 2026 Republican primary to succeed Ernst.^[156]

In the Democratic primary, state Representative Josh Turek defeated state Senator Zach Wahls by a comfortable margin.^[157] Both Democratic candidates cited Ernst's remarks about Medicare as a factor in their decisions to run.^{[citation needed]}

One-term Republican Roger Marshall was elected in 2020 with 53.2% of the vote and is running for reelection.^[158]

Former Kansas state USDA Director Christy Davis,^[159] former federal prosecutor Jason Hart,^[160] commercial real estate developer Erik Murray,^[161] attorney Anne Parelkar,^[162] state senator Patrick Schmidt,^[163] art gallery owner Mike Soetaertare,^[162] former financial services executive Sandy Spidel Neumann,^[164] and counterintelligence specialist Noah Tyler^[165] are running for the Democratic nomination.

Quick facts Nominee, Party ...

Kentucky election

← 2020 2032 →

Nominee Andy Barr Charles Booker Party Republican Democratic

Incumbent U.S. senator Mitch McConnell Republican

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Seven-term Republican and former Senate Republican Leader Mitch McConnell was reelected in 2020 with 57.8% of the vote. McConnell retired as leader after the 2024 elections with plans to serve out the remainder of his term.^[166] On February 20, 2025, McConnell announced he would not seek reelection.^[17]

On May 19, U.S. Representative Andy Barr of Kentucky's 6th congressional district^[167] defeated a crowded field that included former Kentucky Attorney General and 2023 Republican gubernatorial nominee Daniel Cameron^[168] for the Republican nomination.^[169]

Also on May 19, former state Representative Charles Booker, the 2022 Senate nominee and a former staffer for Governor Andy Beshear, won the Democratic primary,^[170] in a crowded field that included the 2020 nominee and Marine fighter pilot Amy McGrath.^[170][169]

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Louisiana election

← 2020 2032 →

Nominee Julia Letlow Jamie Davis Party Republican Democratic

Incumbent U.S. senator Bill Cassidy Republican

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Two-term Republican Bill Cassidy was reelected in 2020 with 59.3% of the vote in the first round of the "Louisiana primary", and ran for reelection to a third term, but placed a distant third in the jungle primary.^[171] The "Louisiana primary" has since been eliminated, and this election will use partisan primaries.^[172] Party primaries will be closed to members of other parties, though voters unaffiliated with a party may vote in either.^[172]

U.S. Representative Julia Letlow and state Treasurer and former U.S. representative John Fleming have advanced to the Republican runoff, defeating Cassidy in the primary.^[173][174] President Donald Trump has endorsed Letlow.^[175]

The Democratic primary runoff is between data scientist and political consultant Gary Crockett and sorghum farmer Jamie Davis.^[176] Nonprofit executive Nick Albares placed third in the jungle primary.^[177]

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Maine election

← 2020 2032 →

Nominee Susan Collins Graham Platner Party Republican Democratic

Incumbent U.S. senator Susan Collins Republican

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Incumbent Republican Senator Susan Collins was reelected with 51% of the vote in 2020. She formally announced her reelection campaign in February 2026.^[178] As the only person to submit the necessary number of signatures to appear on the primary ballot, Collins is the Republican nominee.^[179]

Throughout 2025, Governor Janet Mills was seen as a potential challenger to Collins. She announced her Senate candidacy in October^[180] and pledged to serve only one term if elected.^[181] She suspended her campaign on April 30, 2026, due to a lack of financial resources and poor polling numbers.^[182]

On June 9, Sullivan harbor master and Marine veteran Graham Platner^[183] defeated former deputy secretary of the Maryland Department of the Environment David Costello^[184] for the Democratic nomination with 72% of the vote.^[185] Congressman Jared Golden was seen as a potential candidate but chose to retire from politics instead.^[186]

Two-term Democrat Ed Markey was reelected in 2020 with 66.2% of the vote, and is running for reelection to a third full term.^[83][187] The longest-serving Democrat in Congress, he will be 80 on Election Day. During the 2020 Democratic primary, Markey faced multiple calls to retire due to his age.^[188][189] He is being challenged in the Democratic primary by U.S. Representative Seth Moulton.^[84]

2024 U.S. Senate nominee John Deaton is running for the Republican nomination.^[82]

Two-term Democrat Gary Peters was narrowly reelected in 2020 with 49.9% of the vote. On January 28, 2025, he announced that he would not seek reelection.^[18]

State Senator Mallory McMorrow,^[190] former Wayne County Health, Human, and Veterans Services Department Director Abdul El-Sayed,^[191] and U.S. Representative Haley Stevens of the 11th congressional district^[192] are all running in the Democratic primary.

As the only person to submit the necessary number of signatures to appear on the primary ballot, former US Representative for the 8th congressional district and 2024 U.S. Senate nominee Mike Rogers^[193] is the presumptive Republican nominee.

One-term Democrat Tina Smith was reelected in 2020 with 48.7% of the vote after being appointed by Governor Mark Dayton in 2018 following Al Franken's resignation and then winning a special election that year. On February 13, 2025, she announced she would not seek a second full term in 2026.^[19] Incumbent Lieutenant Governor Peggy Flanagan announced her candidacy the same day.^[194] U.S. Representative Angie Craig announced her candidacy on April 29.^[195]

Republicans running include sportscaster Michele Tafoya,^[196] 2024 Republican U.S. Senate nominee and former professional basketball player Royce White,^[197] retired U.S. Navy officer Tom Weiler,^[198] and former Navy SEAL Adam Schwarze.^[199]

Quick facts Nominee, Party ...

Mississippi election

← 2020 2032 →

Nominee Cindy Hyde-Smith Scott Colom Party Republican Democratic

Incumbent U.S. senator Cindy Hyde-Smith Republican

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One-term Republican Cindy Hyde-Smith was reelected in 2020 with 54.1% of the vote after being appointed in 2018 and winning a special election later that year. She is running for a second full term in office.^[200] She defeated physician Sarah Adlakha in the Republican primary on March 10, 2026.^[201]

Lowndes County District Attorney Scott Colom defeated U.S. Marine Corps veteran Albert Littell, and Priscilla Williams-Till, a cousin of Emmett Till, in the Democratic primary on March 10, 2026.^{[202][203][204]}

Ty Pinkins, the Democratic nominee for Secretary of State in 2023 and for U.S. Senate in 2024, is running as an independent.^[205]

Quick facts Nominee, Party ...

Montana election

← 2020 2032 →

Nominee Kurt Alme Alani Bankhead Seth Bodnar Party Republican Democratic Independent

Incumbent U.S. senator Steve Daines Republican

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Two-term Republican Steve Daines was reelected in 2020 with 55% of the vote. On March 4, 2026, Daines announced he would not seek reelection. The same day, U.S. Attorney Kurt Alme announced his candidacy and immediately won Daines's endorsement.^[206]

Former state Representative Reilly Neill ran for the Democratic nomination,^[207] but was defeated in the Democratic primary by former U.S. Air Force Lieutenant Colonel Alani Bankhead in a major upset.^[208]

Seth Bodnar, the president of the University of Montana until January 2026, is running as an independent candidate.^[209] Former U.S. Senator Jon Tester endorsed Bodnar, surprising many and angering many Democrats.^[210]

Quick facts Nominee, Party ...

Nebraska election

← 2024 2032 →

Nominee Pete Ricketts Cindy Burbank Dan Osborn Party Republican Democratic Independent

Incumbent U.S. senator Pete Ricketts Republican

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Two-term Republican Ben Sasse resigned early in the 118th Congress to become president of the University of Florida.^[211] On January 12, 2023, Governor Jim Pillen appointed former governor Pete Ricketts as senator.^[212] Ricketts won the 2024 special election to complete Sasse's term, defeating college professor Preston Love Jr.,^[213] and is now running for reelection to his first full term.^[214]

Former labor union leader Dan Osborn, who challenged Republican Deb Fischer for Nebraska’s Class I Senate seat, has announced an independent bid.^[90]

The Nebraska Democratic Party has declined to recruit a Democratic challenger to Ricketts,^[215] and the party's chair has endorsed Osborn.^[216] Other candidates filed for the Democratic primary, raising concern that their campaigns could split the vote and weaken Osborn's support in the general election,^[217] but retired pharmacy technician Cindy Burbank won the Democratic primary and said she intends to withdraw from the general election if she sees no clear path to victory.^[218]

Three-term Democrat Jeanne Shaheen was reelected in 2020 with 56.6% of the vote. On March 12, 2025, Shaheen announced that she would not seek reelection to a fourth term.^[21]

Those running for the Democratic nomination include U.S. Representative Chris Pappas^[92] and New Hampshire Democratic Party rules committee member Karishma Manzur.^[91]

On June 25, former U.S. Senator from Massachusetts and former U.S. Ambassador to New Zealand and Samoa Scott Brown entered the race; he won the 2014 Republican Senate primary but lost the general election to Shaheen.^[54] Former U.S. Senator John E. Sununu, who lost his seat to Shaheen in 2008, is also running.^[53] His brother, former Governor Chris Sununu, declined to run.^[219]

Quick facts Nominee, Party ...

New Jersey election

← 2020 2032 →

Nominee Cory Booker Justin Murphy Party Democratic Republican

Incumbent U.S. senator Cory Booker Democratic

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Two-term Democrat Cory Booker was reelected in 2020 with 57.2% of the vote and is running for reelection to a third full term.^[220] As the only person to submit the necessary number of signatures to appear on the primary ballot, Booker is the Democratic nominee.^[221]

On June 2, 2026, former Tabernacle Mayor Justin Murphy, a Navy veteran and attorney, won the Republican nomination^[222] with 33% of the vote, defeating physician Robert Lebovics, U.S. Army combat veteran Richard Tabor, and former News 12 reporter Alex Zdan.^[223]

Quick facts Nominee, Party ...

New Mexico election

← 2020 2032 →

Nominee Ben Ray Luján Larry Marker Party Democratic Republican

Incumbent U.S. senator Ben Ray Luján Democratic

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One-term Democrat Ben Ray Luján was elected in 2020 with 51.7% of the vote. On April 23, 2025, Luján announced that he would seek a second term.^[224]

Christopher Heuvel, the only Republican who filed, was disqualified from the race for failing to meet the requirements to make the ballot.^[225] Former oil and gas operator Larry Marker collected the signatures needed to qualify for the nomination as a write-in.^[226]

Quick facts Nominee, Party ...

North Carolina election

← 2020 2032 →

Nominee Michael Whatley Roy Cooper Party Republican Democratic

Incumbent U.S. senator Thom Tillis Republican

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Two-term Republican Thom Tillis, who was narrowly reelected in 2020 with 48.7% of the vote, announced on June 29, 2025, that he would not seek a third term after facing backlash for voting against One Big Beautiful Bill Act, prompting Donald Trump to call for a primary challenger.^[22] After Tillis withdrew, Trump endorsed former Republican National Committee chair Michael Whatley,^[227] who won the Republican nomination, defeating Don Brown in the March 3 primary.^[228]

Lara Trump, former co-chair of the Republican National Committee and Wilmington native, was considered a potential candidate to challenge Tillis, but announced she would not run.^[229]

On the Democratic side, former U.S. Representative Wiley Nickel declared his candidacy in April 2025.^[230] Former Governor Roy Cooper announced his candidacy on July 28, 2025.^[45] The next day, Nickel dropped out and endorsed Cooper.^[231] Cooper easily won the nomination.^[47]

Quick facts Nominee, Party ...

Ohio special election

← 2022 2028 →

Nominee Jon Husted Sherrod Brown Party Republican Democratic

Incumbent U.S. senator Jon Husted Republican

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One-term Republican JD Vance was elected in 2022 with 53% of the vote.^[232] On January 10, 2025, he resigned from the Senate after being elected Vice President of the United States in 2024. On January 17, Governor Mike DeWine announced that then-Lieutenant Governor Jon Husted would replace Vance in the Senate.^[233] Husted is running to serve the remainder of Vance's term.^[234]

Former U.S. Senator Sherrod Brown, who was unseated in 2024,^[235] defeated IT professional Ron Kincaid in the Democratic primary on May 5, 2026.^[236]

Former Libertarian National Committee chair William Redpath is running as a Libertarian.^[237] Ohio Libertarians disqualified healthcare consultant Jeffrey Kanter from the Libertarian primary after he submitted hundreds of invalid signatures with his candidate petition.^[238]

Incumbent Republican Markwayne Mullin won a special election in 2022 with 61.8% of the vote to complete the remainder of the term vacated by Jim Inhofe, who resigned on January 3, 2023, due to declining health and died in 2024.^[239]

Mullin initially announced plans to seek his first full term in office, but on March 5, 2026, President Trump announced his nomination of Mullin for Secretary of Homeland Security; the Senate confirmed Mullin on March 23.^[240] Governor Kevin Stitt appointed board member and former CEO of Williams Companies Alan Armstrong to replace Mullin in the Senate.^[241] Armstrong was sworn in on March 24^[242] and was required to sign an oath stating that he would not run in the 2026 election.^[243][12]

U.S. Representative for Oklahoma's 1st congressional district Kevin Hern^[244] won the June 16 Republican primary with 70% of the vote in a crowded field.^[245]

In the June 16 Democratic primary, lawyer Jim Priest^[246] and nurse N'Kiyla "Jasmine" Thomas^[247] received the most votes and advanced to a runoff on August 25.^[248]

Entering Wedge Media executive director Ron Meinhardt and pharmacist Curtis Stinnett are running as independents.^[245][249] Sevier White, candidate for Oklahoma's 4th congressional district in 2016, is running as a Libertarian.^[245]

Quick facts Nominee, Party ...

Oregon election

← 2020 2032 →

Nominee Jeff Merkley David Brock Smith Party Democratic Republican

Incumbent U.S. senator Jeff Merkley Democratic

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Three-term Democrat Jeff Merkley was reelected in 2020 with 56.9% of the vote. On July 20, 2025, he announced his candidacy for reelection.^[250] He defeated retired electrical engineer Paul D. Wells^[251] in the Democratic primary on May 19, 2026.^[252]

State Senator David Brock Smith,^[253] won the Republican primary that was held on May 19, 2026, defeating a crowded field of candidates, with former Linn County Republican Party chair Jo Rae Perkins^[251] coming in second.^[254]

Five-term Democrat Jack Reed was reelected in 2020 with 66.5% of the vote. He is running for reelection to a sixth term.^[255] He is being challenged in the Democratic primary by elder care worker Connor Burbridge.^[256]

Former Rhode Island Republican Party official Raymond McKay is running for the Republican nomination.^[257]