The 2024 United States Senate election in Massachusetts took place on November 5, 2024. Democratic incumbent Senator Elizabeth Warren successfully ran for a third term, securing 59.81% of the vote. Warren was challenged by Republican attorney John Deaton. Primary elections took place on September 3, 2024.
This election marked the first time that Warren had lost Bristol County while running for the office. Warren underperformed Kamala Harris by 6 points in the concurrent presidential election, making her the second-worst Democratic Senate performer in the 2024 cycle after Angela Alsobrooks in Maryland.
Warren received 84,850 (1.4 percent) votes fewer than Harris. John Deaton ran as an anti-Trump centrist Republican.
Democratic primary Candidates Nominee Elizabeth Warren, incumbent U.S. senator (2013–present)
Declined Jake Auchincloss, U.S. representative for (2021–present) (ran for re-election) Seth Moulton, U.S. representative for (2015–present) (ran for re-election) Ayanna Pressley, U.S. representative for (2019–present) (endorsed Warren, ran for re-election) Michelle Wu, mayor of Boston (2021–present) (endorsed Warren)
Endorsements
Fundraising Campaign finance reports as of June 30, 2024CandidateRaisedSpentCash on handElizabeth Warren (D)$18,486,081$24,658,143$4,920,625Source: Federal Election Commission
Results
Republican primary Candidates Nominee John Deaton, attorney
Eliminated in primary Robert Antonellis, nutrition software company owner and self-professed conspiracy theorist Ian Cain, president of the Quincy City Council
Declined Charlie Baker, former Governor of Massachusetts from 2015 to 2023 Chris Doughty, manufacturing executive and candidate for governor in 2022
Endorsements
Fundraising Campaign finance reports as of June 30, 2024CandidateRaisedSpentCash on handRobert Antonellis (R)$43,352$37,250$9,667Ian Cain (R)$361,115$312,722$48,393John Deaton (R)$1,690,411$715,642$974,769Source: Federal Election Commission
Polling Poll source Date(s)administered Samplesize Marginof error RobertAntonellis IanCain JohnDeaton Other UndecidedYouGovYouGovMay 17–30, 2024292 (A)± 4.4%19%5%15%25%36%Suffolk UniversitySuffolk UniversityApril 16–20, 202499(LV)± 4.4%4%2%4%1%89%
Results
Workers Party primary Candidates Withdrawn Brandon Griffin
Libertarian primary Candidates Withdrew Louis Marino, former Chelmsford town meeting representative
General election Predictions SourceRankingAs of The Cook Political Report November 9, 2023 Inside Elections November 9, 2023 Sabato's Crystal Ball November 9, 2023 Decision Desk HQ/The Hill June 8, 2024 Elections Daily May 4, 2023 CNalysis November 21, 2023 RealClearPolitics August 5, 2024 Split Ticket October 23, 2024 538 October 23, 2024
Post-primary endorsements
Polling Aggregate polls Source of pollaggregationDatesadministeredDatesupdated ElizabethWarren (D) JohnDeaton (R) UndecidedMargin538538through November 2, 2024November 3, 202457.0%34.8%8.2%Warren +22.2%RealClearPoliticsRealClearPoliticsSeptember 12 - October 26, 2024November 3, 202456.5%34.3%9.2%Warren +22.2%270toWin270toWinOctober 8 - November 3, 2024November 3, 202457.5%34.8%7.7%Warren +22.7%TheHill/DDHQTheHill/DDHQthrough November 2, 2024November 3, 202458.4%36.1%5.5%Warren +22.3%Average57.4%35.0%7.6%Warren+22.4% Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) JohnDeaton (R) Other UndecidedUniversity of New HampshireUniversity of New HampshireOctober 29 – November 2, 2024744 (LV)± 3.6%60%37%–3%MassINC Polling GroupMassINC Polling GroupOctober 29 – November 1, 2024582 (LV)± 4.9%55%33%8%4%ActiVoteActiVoteOctober 2–30, 2024400 (LV)± 4.9%63%37%––Emerson CollegeEmerson CollegeOctober 24–26, 20241,000 (LV)± 3.0%56%36%1%7%UMass Amherst/YouGov/WCVBUMass Amherst/YouGov/WCVBOctober 3–10, 2024700 (A)± 4.8%56%34%3%7%Suffolk UniversitySuffolk UniversityOctober 2–6, 2024500 (LV)± 4.4%59%35%–6%Opinion Diagnostics (R)Opinion Diagnostics (R)September 19–21, 2024638 (LV)–53%32%–15%MassINC Polling GroupMassINC Polling GroupSeptember 12–18, 2024800 (LV)± 4.1%56%35%3%7%University of New HampshireUniversity of New HampshireSeptember 12–16, 2024564 (LV)± 4.1%58%32%7%3%YouGovYouGovMay 17–30, 2023700 (A)± 4.4%47%24%8%21%
Elizabeth Warren vs. Robert Antonellis Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) RobertAntonellis (R) Other/UndecidedYouGovMay 17–30, 2023700 (A)± 4.4%50%23%27%
Elizabeth Warren vs. Charlie Baker Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) CharlieBaker (R) UndecidedFiscal Alliance FoundationFiscal Alliance FoundationMay 6–7, 2023750 (LV)± 3.6%34%49%17%
Elizabeth Warren vs. Ian Cain Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) IanCain (R) Other/UndecidedYouGovMay 17–30, 2023700 (A)± 4.4%48%24%28%
Elizabeth Warren vs. Jonathan Kraft Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) JohnathanKraft (R) UndecidedSuffolk UniversitySuffolk UniversityFebruary 2–5, 20231000 (LV)± 3.1%56%33%11%
Elizabeth Warren vs. Aaron Packard Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) AaronPackard (R) Other/UndecidedYouGovMay 17–30, 2023700 (A)± 4.4%48%23%29%
Elizabeth Warren vs. Karyn Polito Poll source Date(s)administered Samplesize Marginof error ElizabethWarren (D) KarynPolito (R) UndecidedFiscal Alliance FoundationFiscal Alliance FoundationJuly 21–22, 2023750 (LV)± 3.6%41%29%30%
Results
By county
CountyElizabeth WarrenDemocraticJohn DeatonRepublicanAll others#%#%#%Barnstable81,39555.2665,70944.611830.12Berkshire46,80370.0119,98429.89650.1Bristol134,45149.55136,53050.323520.13Dukes8,79272.893,26027.03100.08Essex228,30357.83165,90742.035680.14Franklin27,92166.9313,73732.93570.14Hampden110,37553.9993,67745.833700.18Hampshire58,09969.2925,64430.581080.13Middlesex532,64666.54266,26533.271,5230.19Nantucket4,51364.472,47935.4180.11Norfolk225,37859.25154,06840.519200.24Plymouth147,81349.86148,29250.023410.12Suffolk219,76975.4170,67624.251,0060.35Worcester215,41051.86199,21247.967100.17 Totals2,041,66859.811,365,44040.06,2210.18
Counties that flipped from Democratic to Republican Bristol (largest municipality: New Bedford)
By congressional district Warren won all nine congressional districts. District Warren Deaton Representative 56% 44% Richard Neal 59% 41% Jim McGovern 58% 42% Lori Trahan 56% 44% Jake Auchincloss 70% 30% Katherine Clark 57% 43% Seth Moulton 82% 18% Ayanna Pressley 59% 40% Stephen Lynch 51% 49% Bill Keating
Notes
Partisan clients
References
External links Official campaign websites
John Deaton (R) Brandon James Griffin (WP) Elizabeth Warren (D)