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Member brief · 119th Congress

Rep. Seth Moulton

D · Democrat · U.S. Representative, Massachusetts 6th District1

In Congress
Since 2015 · 11 years
 Next election
Nov 3, 2026
 Committee leadership
Ranking Member, Strategic Forces

CommitteesArmed Services; Transportation and Infrastructure; House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party2

Participation3

85 / 100

Chamber median 98
573 of 674 roll calls

Party unity3

98 / 100

Chamber median 98
on 418 party-line votes

Cross-party agreement3

11 / 100

Chamber median 12
on 467 contested votes

Ideology score4

−0.29

Chamber median +0.19
−1 left · +1 right

Notable votes and votes by issue

In the full brief: five notable recent votes chosen by a fixed rule (most recent breaks with party first), each with the member’s vote, the party’s position and a source, plus how often Moulton votes with the party on each issue.

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Votes most like5

D Pablo José Hernández PR-AL 100% of 69
D Julia Brownley CA-26 98% of 455
D Melanie A. Stansbury NM-1 98% of 457

Share of roll calls both voted on where they voted the same way.

Next race

Nov 3, 2026 · Not on the November ballot7

On the ballot against them

John DeatonRepublican

Data as of Oct 5, 2026 · votes through Sep 16, 2026 · Method: https://oathstar.com/methodology · Live profile: https://oathstar.com/member/seth-moulton

  1. 1. Member record and terms: congress.gov; unitedstates/congress-legislators, retrieved 2026-10-05. www.congress.gov/member/M001196
  2. 2. Committees: unitedstates/congress-legislators, retrieved 2026-10-05. github.com/unitedstates/congress-legislators
  3. 3. Participation, party unity, cross-party agreement, votes by issue: Oathstar from Voteview roll calls, 119th Congress, retrieved 2026-10-05. voteview.com/person/21525
  4. 4. Ideology: DW-NOMINATE first dimension, Voteview, 119th Congress. voteview.com/person/21525
  5. 5. Votes most like: Oathstar from Voteview roll calls, 119th Congress. voteview.com/data
  6. 6. Candidates: FEC filings, 2026 MA-SENATE race, retrieved 2026-10-05. www.fec.gov/data/elections/senate/MA/2026/
  7. 7. November ballot: https://en.wikipedia.org/wiki/2026_United_States_Senate_elections, as of 2026-10-03. en.wikipedia.org/wiki/2026_United_States_Senate_elections

Prepared with Oathstar · oathstar.com

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