Seth Moulton
U.S. Representative, MA-6 since 2015. Did not run for re-election in 2026; leaves office in January 2027.
U.S. Representative, MA-6Born 1978
- In office
- 11 yrs
- Since 2015
- Bills became law
- 1
- 21 sponsored, 119th Congress
- Votes missed
- 15.2%
- Chamber median 2.1%
- With party
- 98%
- On votes splitting the parties
- Last margin
- +27.7
- Won 2022
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Nov 7, 2026, 3:00 PM ET
Committees
119th Congress.
- House Committee on Transportation and InfrastructureRailroads, Pipelines, and Hazardous MaterialsHighways and Transit
- House Committee on Armed ServicesStrategic Forces · Ranking MemberCyber, Information Technologies, and Innovation
- House Select Committee on the Strategic Competition Between the United States and the Chinese Communist Party
Source: congress-legislators committeesUpdated Nov 7, 2026, 3:00 PM ET
Legislation
Public Lands and Natural Resources · Became law Jul 2025
Source: Congress.gov billsUpdated Nov 6, 2026, 3:27 PM ET
Voting record
Where Moulton sits in the U.S. House
Moulton is closer to the center than 57% of the chamber's Democrats.
Closest: Kelly Morrison, Lizzie Fletcher, Wesley Bell
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:06 PM ET
With Moulton’s party
- Votes with the chamber's Democrats98%
- Cosponsorships of the other party's bills18%
Black tick: the average of Democrats in the U.S. House.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Moulton’s vote, each party’s majority, and the result. An orange vote differs from most Democrats.
| Date | Bill | Moulton | Dem. majority | Rep. majority | Result |
|---|---|---|---|---|---|
| Sep 16, 2026 | HR 5334: Lindsey O. Graham Sanctioning Russia and Iran Act of 2026 | Yes | No | Yes | Passed 262–159 |
| Jun 30, 2026 | HCONRES 108: Directing the President pursuant to section 5(c) of the War Powers Resolution to… | Yes | Yes | No | Failed 189–235 |
| Jun 9, 2026 | S 2: Secure America Act | No | No | Yes | Passed 214–212 |
| May 13, 2026 | HR 1346: To amend the Clean Air Act with respect to the ethanol waiver for Reid Vapor Pressure… | Not voting | No | Yes | Passed 218–203 |
| Feb 12, 2026 | HR 2189: To modernize Federal firearms laws to account for advancements in technology and… | Not voting | No | Yes | Passed 233–185 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Moulton was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin |
|---|---|---|---|
| 2024 | U.S. House, MA-6 | Won | — |
| 2022 | U.S. House, MA-6 | Won | D+27.7 |
| 2020 | U.S. House, MA-6 | Won | D+31.0 |
| 2018 | U.S. House, MA-6 | Won | D+33.8 |
| 2016 | U.S. House, MA-6 | Won | — |
| 2014 | U.S. House, MA-6 | Won | D+13.8 |
Source: 99chambers results archive
Seats Moulton has held
- U.S. House, MA-6 · 2015–2027
Source: 99chambers results archive
Who Moulton has run against
- Bob May (R) · 2022 general, won
- John Paul Moran (R) · 2020 general, won
- Joseph S. Schneider (R) · 2018 general, won
- Richard R. Tisei (R) · 2014 general, won
Source: 99chambers results archive
How we know Moulton
One person, matched across every source we use.
- Bioguide M001196
- FEC H4MA06090
- Wikidata Q18045052
- Ballotpedia Seth Moulton
- Vote Smart 146299
- GovTrack 412632
- OpenSecrets N00035431
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Nov 7, 2026, 3:00 PM ET