Seth Moulton

DemocratDistrict D+11119th CongressOn the ballot 2026

Typical swing score58#121 of 433 representatives across tracked bills

Contact Seth Moulton’s office

Official D.C. office details from the congress-legislators dataset

Call office 202-225-8020 Contact via website

Washington, D.C. office

1126 Longworth House Office Building Washington DC 20515-2106

Model

v3defaultv2

Directional: count only breaks toward the other party Why do scores change?

Signals to watch

What in this member’s district, record and ideology could move them, and in which direction. Their score is the same on every bill they haven’t committed to, so these are the things to watch.

Could pull them toward Republicans · 2 signals

Strong
Backs 15 Republican-led tracked billsSponsor or active cosponsor of 15 of the 865 tracked bills that were introduced by Republicans: H.R. 452, H.R. 530, H.R. 842, H.R. 859, H.R. 909 and 10 more.
Weak
45th most moderate of 212 House DemocratsDW-NOMINATE -0.286 vs. the House Democratic median of -0.393: 0.107 toward the Republicans (rank 45 of 212 by distance toward the Republicans).

Keeps them with Democrats · 0 signals

None of our measures place this member firmly with their party.

Bill-specific inputsVotes on similar past bills and committee seats vary by bill, so they appear in the swing-v3 scores below rather than here.

Term and election

From the congress-legislators dataset

On the ballot 2026

Current term: January 3, 2025 – January 3, 2027
Next election: November 3, 2026
Years in office: 11.8 years

Committees

Seats on a bill’s committee of referral add a in swing-v3

House Committee on Armed Services
Minority · 5th in seniority
- Subcommittee on Strategic ForcesRanking Member
- Subcommittee on Cyber, Information Technologies, and Innovation
House Committee on Transportation and Infrastructure
Minority · 17th in seniority
- Subcommittee on Highways and Transit
- Subcommittee on Railroads, Pipelines, and Hazardous Materials

Voting ideology

first dimension, from Voteview

D median

R median

Moulton

← More liberal (−1)More conservative (+1) →

Their score of -0.286 is 0.11 to the right of the House Democratic median (-0.393).

Advocacy scorecards

Their rating vs. the House Democratic average

119th Congress0
House Democratic average: 1 (n=210)

Swing score by bill

swing-v3, directional · a bill marks a member as committed to it

Showing 1–50 of 858 tracked bills, best swing first

Swing score for Seth Moulton on each tracked bill
Bill	Their role	Swing score ·
H.R. 1182Compressed Gas Cylinder Safety and Oversight Improvements Act of 2025Summary on Congress.gov	No position yetNow in the Senate	72 Broke with party on 4% of 27 similar votes Sits on a committee of referral	Swing
H.R. 192Amtrak Executive Bonus Disclosure Act