Arizona edit

One-term independent Kyrsten Sinema was narrowly elected in 2018 as a Democrat with 50.0% of the vote. She left the Democratic Party in December 2022.[1] Sinema announced on March 5, 2024, that she would not run for reelection.[2]

Prior to her retirement announcement, Sinema was considered vulnerable to challengers from the Democratic Party due to her opposition to some of President Joe Biden's agenda,[3] and U.S. representative Ruben Gallego launched an early bid for the Democratic nomination.[4][5]

Among Republicans, Pinal County sheriff Mark Lamb and 2022 gubernatorial nominee Kari Lake have announced their candidacies.[6][7] Solar panel manufacturer Jim Lamon[8] is considering running for the Republican nomination. Former governor Doug Ducey said he is unlikely to run.[9]

California edit

California election
 
← 2018
2030 →
     
Candidate Adam Schiff Steve Garvey
Party Democratic Republican

Incumbent U.S. senator

Laphonza Butler[a]
Democratic



Five-term Democrat Dianne Feinstein was reelected in 2018 with 54.2% of the vote against another Democrat. On February 14, 2023, Feinstein announced that she would not seek reelection to a sixth term.[10] However, she died on September 29, 2023, leaving the seat vacant. Democrat Laphonza Butler, president of EMILY's List, was appointed by California Governor Gavin Newsom to succeed Feinstein on October 2, 2023.[11] Butler is not running for election to a full term or for the final two months of the current term.[12]

There were three major Democratic candidates for the seat — U.S. representatives Barbara Lee, Katie Porter, and Adam Schiff — along with former professional baseball player Steve Garvey running as a Republican.[13][14][15][16][17] Schiff was viewed as representing the establishment wing of the Democratic Party while Porter and Lee represent the progressive wing.[18]

Adam Schiff and Steve Garvey won the non-partisan primary election which took place on March 5, 2024, during Super Tuesday, setting up a general election campaign between the two.[18]

Due to California's election rules, similar to the previous election for the other seat, there will be two ballot items for the same seat: a general election, to elect a Class 1 senator to a full term beginning with the 119th United States Congress, to be sworn in on January 3, 2025, and a special election to fill that seat for the final weeks of the 118th Congress.

Connecticut edit

Two-term Democrat Chris Murphy was reelected in 2018 with 59.5% of the vote. He has announced he is running for a third term.[19] Gerry Smith, First Selectman of Beacon Falls, Connecticut announced his campaign in early February 2024.[20] Lobbyist Robert F. Hyde is also a Republican candidate.[21]

Delaware edit

Four-term Democrat Tom Carper was reelected in 2018 with 60.0% of the vote. He announced on May 22, 2023, that he will be retiring and will not run for a fifth term.[22]

Delaware's at-large U.S. representative Lisa Blunt Rochester is running for the Democratic nomination to succeed Carper, who endorsed her when he announced his retirement.[23][24]

Term-limited governor John Carney is also considered a possible Democratic candidate.[22][25] Carney announced that he is considering a campaign for mayor of Wilmington.[26]

Among Republicans, businessman Eric Hansen has announced his candidacy.[27]

Florida edit

Former governor and incumbent one-term Republican Rick Scott was narrowly elected in 2018 with 50.06% of the vote. He is running for reelection to a second term.[28] Due to his role in a worse-than-expected midterm for Republicans, Scott is seen as potentially vulnerable to a primary challenge. Brevard County assistant district attorney Keith Gross is expected to announce a primary challenge against Scott.[29][30]

Former U.S. Representative Debbie Mucarsel-Powell is running for the Democratic nomination to challenge Scott.[31] Former U.S. representative Stephanie Murphy,[32] state senator Shevrin Jones,[33] suspended Hillsborough County state's attorney Andrew H. Warren,[34] Brevard County School Board trustee Jennifer Jenkins,[35] and former professional basketball players Grant Hill and Dwyane Wade[36] are also considered potential Democratic candidates.

Hawaii edit

Two-term Democrat Mazie Hirono was reelected in 2018 with 71.2% of the vote. Hirono is running for a third term.[37]

Indiana edit

One-term Republican Mike Braun was elected in 2018 with 50.8% of the vote. Braun is retiring to prepare to run for governor of Indiana.[38] U.S. representative Jim Banks is running unopposed after his only competition, businessman John Rust, was disqualified.[39]

Former State Representative Marc Carmichael and psychologist Valerie McCray are both running for the Democratic nomination[40]

Maine edit

Two-term Independent incumbent Angus King was reelected in 2018 with 54.3% of the vote in a three-candidate election. He intends to run for a third term despite previously hinting that he may retire.[41]

Democratic consultant David Costello has announced he is challenging King.[42]

Former Maine Republican Party chair Demitroula Kouzounas is running.[43]

Maryland edit

Three-term Democrat Ben Cardin was reelected in 2018 with 64.9% of the vote. On May 1, 2023, Cardin announced he is not running for reelection.[44]

Prince George's County executive Angela Alsobrooks,[45] tech executive Marcellus Crews,[46] and U.S. Representative David Trone[47] are running for the Democratic nomination.

Former state delegate Robin Ficker[48] and former governor Larry Hogan[49] are running as Republicans. Hogan had previously declined to run,[49] but unexpectedly filed to run hours before the candidate filing deadline.[50]

Massachusetts edit

Two-term Democrat Elizabeth Warren was reelected in 2018 with 60.3% of the vote. On March 27, 2023, Warren announced that she is running for reelection.[51]

Software company owner Robert Antonellis is running as a Republican.[52] Former lieutenant governor Karyn Polito is seen as a potential candidate for the Republican nomination.[53]

Michigan edit

Four-term Democrat Debbie Stabenow was reelected in 2018 with 52.3% of the vote. She announced on January 5, 2023, that she will retire, and will not run for a fifth term.[54] Representative Elissa Slotkin,[55] and state representative Leslie Love[56] have announced their candidacies for the Democratic nomination. Businessman and 2006 Republican candidate for this seat Nasser Beydoun has also declared his candidacy as a Democrat.[57] Actor Hill Harper announced his campaign for the Democratic nomination in July 2023.[58]

Former U.S. representatives Mike Rogers, Justin Amash, Peter Meijer, hedge fund manager Sandy Pensler,[59] and State Board of Education trustee Nikki Snyder are running for the Republican nomination.[60][61][62][63][64]

Representatives Bill Huizenga and Lisa McClain, state senator Ruth Johnson, and 2022 gubernatorial candidate Kevin Rinke[65] are also considered possible Republican candidates.[66]

Representative John James, the Republican nominee for this seat in 2018 and for Michigan's other Senate seat in 2020, declined to run.[67]

Minnesota edit

Three-term Democrat Amy Klobuchar was reelected in 2018 with 60.3% of the vote. She is running for a fourth term.[37]

Among Republicans, former NBA basketball player Royce White has declared his candidacy.[68]

Mississippi edit

Two-term Republican Roger Wicker was reelected in 2018 with 58.5% of the vote. Wicker is running for a third full term. He is facing a primary challenge from state representative Dan Eubanks[69] and, assuming he prevails, will be challenged in the general election by Democratic lawyer Ty Pinkins.[70]

Missouri edit

One-term Republican Josh Hawley was elected in 2018 with 51.4% of the vote. He is running for reelection.[71]

Marine Veteran Lucas Kunce, who ran unsuccessfully for the Democratic nomination in 2022, has announced he is running again. State senator Karla May[72] and December Harmon, a member of the Columbia Police Review Board,[73] have also announced their campaigns for the Democratic nomination.

Montana edit

Three-term Democrat Jon Tester was narrowly reelected in 2018 with 50.3% of the vote. On February 22, 2023, he announced he is running for a fourth term. Tester is one of two Democratic senators running for reelection who represent states won by Republican Donald Trump in both the 2016 and 2020 presidential elections.[74]

Businessman and former Navy Seal Tim Sheehy is running for the Republican nomination.[75] U.S. representative Matt Rosendale, also a Republican, announced his candidacy on February 9, 2024, [76] but withdrew his candidacy on February 16, 2024.[77]

Nebraska edit

There will be two elections in Nebraska, due to the resignation of Ben Sasse.

Nebraska (regular) edit

Two-term Republican Deb Fischer was reelected in 2018 with 57.7% of the vote. On May 14, 2021, Fischer announced she is seeking reelection, despite previously declaring an intention to retire.[78]

Dan Osborne, a union leader and mechanic, is running as an independent. Since no Democrats have filed, the state party is considering supporting him.[79]

Nebraska (special) edit

Two-term Republican Ben Sasse resigned his seat on January 8, 2023, to become president of the University of Florida.[80][81] Former governor and 2006 Senate nominee Pete Ricketts was appointed by Governor Jim Pillen and a special election for the seat will take place concurrently with the 2024 regular Senate elections. Ricketts and Air Force veteran John Glen Weaver have declared their candidacies for the Republican nomination.[82]

Nevada edit

One-term Democrat Jacky Rosen was elected in 2018 with 50.4% of the vote. Rosen is running for a second term.[37]

Among Republicans, former state assemblyman Jim Marchant, who ran for secretary of state in 2022, has announced his candidacy.[83] On July 9, 2023, veteran and 2022 Senate candidate Sam Brown announced that he would be a candidate.[84] Other potential Republican challengers include state Senate minority leader Heidi Gansert, former ambassador to Iceland Jeffrey Ross Gunter,[85] reality television personality Rick Harrison, and venture capitalist Guy Nohra.[86][87][88][89][65] Former state attorney general Adam Laxalt, who narrowly lost to Senator Catherine Cortez Masto in 2022, has said that he is unlikely to challenge Rosen.[90]

New Jersey edit

Democrat Bob Menendez was reelected in 2018 with 54.0% of the vote. On July 13, 2021, The New Jersey Globe reported that Menendez planned to run for a fourth full term.[91][92] On September 22, 2023, Menendez was indicted on federal bribery charges.[93] Numerous national and New Jersey Democrats, including Governor Phil Murphy, called on Menendez to resign the same day, [94] including Congressman Andy Kim, who is running for the Democratic nomination.[95] On March 7, 2024, Menendez announced that he will not run for a fourth full term in office.[96]

Financier and current First Lady of New Jersey, Tammy Murphy, has also declared her candidacy for the nomination.[97]

Mendham Mayor Christine Serrano Glassner[98] and former Andover Township School Board Trustee Daniel Cruz have declared their candidacies for the Republican nomination.[99]

New Mexico edit

New Mexico election
 
← 2018
2030 →
     
Nominee Martin Heinrich Nella Domenici
Party Democratic Republican

Incumbent U.S. senator

Martin Heinrich
Democratic



Two-term Democrat Martin Heinrich was reelected in 2018 with 54.1% of the vote in a three-candidate race. He is running for a third term.[100] Hedge fund executive Nella Domenici, whose father served in the U.S. Senate, announced her candidacy on January 17, 2024.[101]

New York edit

Two-term Democrat Kirsten Gillibrand was reelected in 2018 with 67.0% of the vote. She is running for a third full term.[102] Former representative of New York's 1st congressional district and Republican nominee for governor of New York in 2022 Lee Zeldin has not ruled out seeking the Republican nomination to challenge Gillibrand.[103]

North Dakota edit

One-term Republican Kevin Cramer was elected in 2018 with 55.1% of the vote. Cramer, as of now, is running for re-election.[104]

Democrat Katrina Christiansen, an engineering professor from the University of Jamestown and candidate for the Senate in 2022 filed paperwork and announced her candidacy in early October.[105][106] Democrat Kristin Hedger, a businesswoman and nominee for North Dakota secretary of state in 2006 has filed paperwork to run for Cramer's seat, but has yet to make an official announcement.[107]

Ohio edit

Three-term Democrat Sherrod Brown was reelected in 2018 with 53.4% of the vote. Brown is running for a fourth term. He is also one of two Democratic senators running for reelection who represent states won by Republican Donald Trump in both the 2016 and 2020 presidential elections.[108]

State Senator Matt Dolan,[109] Ohio secretary of state Frank LaRose,[110] and businessman Bernie Moreno[111] are running for the Republican nomination.

Pennsylvania edit

Three-term Democrat Bob Casey Jr., was reelected in 2018 with 55.7% of the vote. Casey is running for a fourth term.[112] He is being challenged by engineer Blaine Forkner.[113]

2022 Senate candidate David McCormick is running for the Republican nomination.[114][115][116][117][118][119] On September 30, 2023, the Pennsylvania Republican Party endorsed McCormick.[120] Conestoga Township treasurer Brandi Tomasetti is also running for the nomination.[121]

Rhode Island edit

Three-term Democrat Sheldon Whitehouse was reelected in 2018 with 61.4% of the vote. He is running for a fourth term. Republicans who have announced their candidacies include state Representative Patricia Morgan[122] and IT professional Raymond McKay.[123]

Tennessee edit

One-term Republican Marsha Blackburn was elected in 2018 with 54.7% of the vote. Blackburn has filed paperwork to run for reelection. Democratic state Representative Gloria Johnson, who avoided expulsion by one vote in April 2023, announced her candidacy in September.[124]

Texas edit

Texas election
 
← 2018
2030 →
     
Nominee Ted Cruz Colin Allred
Party Republican Democratic

Incumbent U.S. senator

Ted Cruz
Republican



Two-term Republican Ted Cruz was reelected in 2018 with 50.9% of the vote. Cruz is running for a third term.[125]

The Democratic nominee is U.S. representative Colin Allred, who defeated state senator Roland Gutierrez and state representative Carl Sherman in the primary election.[126][127]

Utah edit

One-term Republican Mitt Romney was elected in 2018 with 62.6% of the vote. On September 13, 2023, Romney announced he would not seek reelection in 2024.[128]

Announced Republican candidates include Riverton Mayor Trent Staggs,[129] state House Speaker Brad Wilson,[130] and U.S. Representative John Curtis.[131]

Vermont edit

Three-term independent Bernie Sanders was reelected in 2018 with 67.4% of the vote. He is being challenged by artist Cris Ericson, an independent perennial candidate.[132]

Virginia edit

Two-term Democrat Tim Kaine was reelected in 2018 with 57.0% of the vote. On January 20, 2023, he confirmed he is running for reelection to a third term.[133] Governor Glenn Youngkin, who will be term-limited in 2025, is considered a possible Republican candidate.[134]

On July 18, 2023, Navy veteran Hung Cao announced he would run as a Republican. Cao unsuccessfully ran for the U.S. House of Representatives against Democrat Jennifer Wexton in 2022.[135]

Washington edit

Four-term Democrat Maria Cantwell was reelected in 2018 with 58.3% of the vote.

Emergency room physician Raul Garcia announced that he would run as a Republican.[136]

West Virginia edit

Democrat Joe Manchin was reelected in 2018 with 49.6% of the vote. There were reports he planned to run for a third full term,[137] but on October 5, 2022, Manchin said, "What I do in 2024 has nothing to do with what I do right now" and that he was watching the 2022 elections before deciding.[37] On March 5, 2023, Manchin said he would make his decision in December 2023, although he had filed paperwork to run.[138] On November 9, 2023, Manchin announced he would not seek reelection.[139] Since Manchin announced his retirement, all major outlets have since rated this seat likely to flip to GOP control, which would put this seat in Republican hands for the first time in 68 years.

Community organizer and U.S. Marine Corps veteran Zachary Shrewsbury and former coal executive Don Blankenship are running for the Democratic nomination.[140][141]

Governor Jim Justice[142] and Representative Alex Mooney[143] are running in the Republican primary.

Manchin had received cross-party endorsements from fellow senators Susan Collins and Lisa Murkowski,[144] both of whom Manchin had endorsed during their respective reelection campaigns.[145][146]

Wisconsin edit

Two-term Democrat Tammy Baldwin was reelected in 2018 with 55.4% of the vote. She is running for reelection.[147] Trempealeau County Supervisor Stacey Klein announced her candidacy[148] Hedge fund manager Eric Hovde, candidate for the Senate in 2012, has publicly expressed interest in a second attempt at the Republican nomination. Former congressman Sean Duffy, businessman Scott Mayer,[149] and former Milwaukee County sheriff David Clarke[150] are seen as potential Republican challengers.[151][152]

Wyoming edit

Republican John Barrasso was reelected in 2018 with 67.0% of the vote.

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