Seth Moulton
Democrat · MA-6 · U.S. House
Bio
Seth Wilbur Moulton is an American politician and Marine Corps combat veteran who has been the U.S. representative for Massachusetts's 6th congressional district since 2015. A member of the Democratic Party, his district includes many of Boston's northern suburbs, such as Andover, Marblehead, Peabody, and his hometown of Salem.
Full bio on Wikipedia →Record of service
- In office
- 11.6 years
- First took office
- 2015 (6 terms)
- Seniority
- 137 of 437 by time served
- Age
- 47
- Salem, MA · 978-531-1669
Service history, offices and identifiers from unitedstates/congress-legislators (public domain). Years served sum each term rather than subtracting the first start date, so a break in service is not counted as time in office.
Reported net worth
- Assets
- $4.5M – $21.6M
- Liabilities
- $1.3M – $5.5M
- Net worth
- −$1.0M – $20.4M
- Since 2019
- +$9.5M
Largest holdings in the 2025 filing · 55 assets reported
Largest first, capped at 40 line items. Each is the asset's reported value bracket, not the income it produced.
From annual financial disclosures, which report every asset and debt as a bracket — so these are ranges, and the figure shown is their midpoint. A primary residence is not a reportable asset while its mortgage is a reportable debt, which pushes some members negative. How this is calculated →
Overall lean (DW-NOMINATE)
Issue profile
Each issue runs left ↔ right, scored from how the member voted on bills tagged to that issue (−1…+1). Issues with too few votes are blank. Overall lean uses DW-NOMINATE.
How they score against the parties
Seth Moulton's voting record compared with each party's national platform, issue by issue — the same similarity score used across the site.
On the political map
Seth Moulton (the large ringed dot) among every current member of Congress and the party platforms.
Each small dot is a current member (Dem · Rep); the larger dots are party platforms — click one for its closest members. Economic axis: taxes, healthcare, labor, energy. Social axis: abortion, guns, immigration, civil rights, crime.
Do you vote like Moulton?
Answer a few questions on the issues and see which members of Congress — and which party — actually line up with you.
Caucuses & committees
Where Moultonsits in Congress's own organization — each group's lean is computed from its members' voting records. Explore them all on the caucuses and committees pages.
Caucuses
- Congressional Equality Caucusstrongly left · 153 members
Committees
- House Committee on Armed Servicescenter · 57 members
- House Committee on Transportation and Infrastructurecenter · 66 members
Most and least aligned members
Treating Moulton's 14 issue scores as a vector, cosine similarity measures whether two voting records point the same way (+100%) or in opposite directions (−100%) — the colleagues whose records align most and least with theirs.
Recent notable votes
Latest news
Top 5 most heated moments as progressives spar over who is further to the left in final Dem Senate debateEd Markey and opponent Seth Moulton clashed over transgender athletes and abolishing ICE in their final Senate debate in Massachusetts.
Fox News · August 21, 2026
AOC endorses Sen Ed Markey as incumbent faces Dem US Senate primary challenge from Rep Seth MoultonRep. Alexandria Ocasio-Cortez endorses incumbent Sen. Ed Markey as he faces off against Rep. Seth Moulton in the Massachusetts Democratic U.S. Senate primary.
Fox News · August 21, 2026
Democrats’ Push for Generational Change Could Hit a Wall in MassachusettsSenator Ed Markey led Representative Seth Moulton in two new polls of the Democratic Senate primary in Massachusetts, as the longtime incumbent seeks to hold off another generational challenge. An anti-incumbent wave has swept through the Democratic primaries…
Biztoc.com · August 18, 2026
80-Year-Old Ed Markey May Trounce Another Young ChallengerRecent polls show Massachusetts senator Ed Markey with a sizable lead over Representative Seth Moulton with only weeks to go before the primary election.
New York Magazine · August 18, 2026
Recent coverage via NewsAPI, refreshed daily.