Official portrait of Seth Moulton
U.S. House

Seth Moulton

U.S. Representative for Massachusetts’s 6th District

Party
Democrat
In office since
January 6, 2015
Current term ends
January 3, 2027
Next election
November 2026
2026 election

Running for U.S. Senate in Massachusetts

Candidates registered with the FEC for the Massachusetts Senate seat in 2026
CandidatePartyRaisedCash on hand
Edward J. MarkeyIncumbentDemocrat$8.1M$1.3M
Seth MoultonDemocrat$6.2M$1.8M
John DeatonRepublican$1.6M$712K
Shiva AyyaduraiIndependent$285K$131K
Joseph TacheOTH$270K$93K
Nathan Alexander BechRepublican$80K$29K

From Federal Election Commission filings, reported through September 30, 2026. FEC records show who registered and raised money, not who won a primary or qualified for the ballot. Your state election office publishes the official ballot.

Committee assignments3
  • House Committee on Armed Services
    • Strategic ForcesRanking Member
    • Cyber, Information Technologies, and Innovation
  • House Committee on Transportation and Infrastructure
    • Highways and Transit
    • Railroads, Pipelines, and Hazardous Materials
  • House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party
Contact
Washington office
1126 Longworth House Office Building Washington DC 20515-2106

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Sources. Office, committee and contact records from the public congress-legislators dataset; portrait from the Government Publishing Office; 2026 fundraising totals from the Federal Election Commission. Updated September 24, 2026.