CC BY 2.0
DemocratRunning for MA U.S. Senate · 2026
Seth Moulton
Seth Wilbur Moulton (born October 24, 1978) 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 .
Born 1978 · Salem, Massachusetts , U.S.
In brief
—
No profile summary yet
Summaries are written and fact-checked against the underlying data in nightly batches. This candidate's hasn't been generated or verified yet.
51.4%
Polling average
our aggregate
95%
Win probability
market-implied
$4.3M
Raised this cycle
FEC · committee
Independence scorecard
Computed · FEC money mixWho Moulton's money comes from.
B−
62/100
Independence index
A mixed funding picture — small-dollar reliance is the watch item.
2 watch items · small-dollar reliance
Small-dollar reliance22
11% of individual + PAC money from donors under $200
PAC independence80
5% of individual + PAC money from PACs
In-state funding48
52% of itemized receipts come from out of state
Outside-money exposure100
No significant outside spending in support so far
MONEY-MIX INDEX, COMPUTED FROM FEC FILINGS ONLY: SMALL-DOLLAR SHARE, PAC RELIANCE, IN-STATE MONEY AND OUTSIDE (IE) SPENDING. IT DOES NOT SCORE VOTES OR DONOR–VOTE ALIGNMENT. HIGHER = MORE INDEPENDENT · GREEN ≥70 · AMBER 50–69 · RED <50.
Governing & voting record
What Moulton did in office.
MeasureYearAction
Salem Maritime National Historical Park Redesignation and Boundary Study Act
Became Public Law No: 119-25.
2025
Became law
250th Anniversary of the United States Marine Corps Commemorative Coin Act
Became Public Law No: 118-10.
2023
Became law
To designate the facility of the United States Postal Service located at 51 Willow Street in Lynn, Massachuset
Became Public Law No: 115-363.
2018
Became law
Modernizing Government Travel Act
Became Public Law No: 115-34.
2017
Became law
Faster Care for Veterans Act of 2016
Became Public Law No: 114-286.
2016
Became law
TPS Relief Act
Referred to the House Committee on the Judiciary.
2026
Sponsored
American High-Speed Rail Act
Referred to the Committee on Transportation and Infrastructure, and in addition to the Committee on Ways and Means, for a period to be subsequently de
2026
Sponsored
SPONSORED LEGISLATION VIA CONGRESS.GOV · ENACTED BILLS FIRST, THEN THE MOST RECENT · ROLE SHOWS THE BILL'S LATEST STATUS.
Where they stand
—
Key positions not yet compiled
Positions are drawn from the candidate's public record and statements. We haven't compiled a verified set for this candidate yet.
How Moulton votes
With the party, against it, and where on the spectrum.
Ideological placement · roll-call record
Dem median
GOP median
Moulton
← LiberalCenterConservative →
Center-left
Overall lean
36
DW-NOMINATE · 0–100
DW-NOMINATE FIRST-DIMENSION SCORE FROM ROLL-CALL VOTES IN THE 119TH CONGRESS (HOUSE), VIA VOTEVIEW. 0 = MOST LIBERAL, 100 = MOST CONSERVATIVE.
Party unity · 513 roll-calls · 119th Congress (House)
98%voted with Democrats · 2% broke ranks
Ratings from advocacy groups
—
No advocacy-group ratings
Interest-group scorecards have no machine-readable feed — they're curated per candidate, and none are on file yet.
Career & history
2015United States representative
since 2015
Public favorability
—
No favorability data
This candidate isn't tracked by YouGov's public-figure panel, and no published state polling on their favorability was found.
Donors & money
FEC itemized filings · cycle-to-dateWho funds the campaign.
$4.3M
Raised
$2.8M
Spent
$3.3M
Cash on hand
Source of funds · individual + PAC
11% small (<$200)84% large indiv.5% PAC
48% in-state · 52% out-of-state (itemized)
Top contributors · bundled by employer / org
FIDELITY INVESTMENTS
$31k
LEIDOS
$22k
ALLY FINANCIAL
$20k
HARVARD BUSINESS SCHOOL
$17k
CHARLESBANK CAPITAL PARTNERS
$15k
FRANCISCO PARTNERS
$14k
Top industries · itemized $
Securities & investment$45k
Education$30k
Computers / electronics$14k
OWN-COMMITTEE TOTALS FROM FEC FILINGS THROUGH 2026-03-31 · INDUSTRY GROUPS ARE ITEMIZED RECEIPTS CLASSIFIED BY EMPLOYER — A KEYWORD APPROXIMATION, NOT OPENSECRETS CODING. SOURCE: FEC ↗
Race
The contest Moulton is running in.
MA · SENATE · 2026safe d
Moulton (D) vs Ed Markey (D)
51.4%−0.4 Markey51.7%
Open full race detail →
Related prediction markets
All markets →Live contract prices tied to Moulton and the seat. Prices are ¢-per-share of the YES outcome; context only, never merged into our polling averages.
Will the Democrats win the Massachusetts Senate race in 2026?
Polymarket · Democrat
Will the Republicans win the Massachusetts Senate race in 2026?
Polymarket · Republican
Which party will win the 2026 US Senate election in Massachusetts?
predictit · Democratic Party
Which party will win the 2026 US Senate election in Massachusetts?
predictit · Republican Party
Massachusetts Senate winner?
Kalshi · vol $3 · Republican party
Massachusetts Senate winner?
Kalshi · Democratic party
Sources & provenance
Biography
Public record
Wikipedia + state records
Money & donors
FEC filings
itemized + committee totals
Markets
Live venues
Polymarket · Kalshi
ALL FIGURES DRAWN FROM PUBLICLY AVAILABLE RECORDS · CANDIDATE PROFILES ARE NONPARTISAN AND CARRY NO ENDORSEMENT. · PHOTO: PHIL ROEDER FROM DES MOINES, IA, USA · CC BY 2.0 (WIKIMEDIA COMMONS)
Related coverage
governorswindenergycoalition.org · 2026-07-07
Climate programs regain footing as Massachusetts Dems debate energy affordability
subscriber.politicopro.com · 2026-07-06
E&E News: Climate programs regain footing as Massachusetts Dems debate energy affordability
swampscotttides.org · 2026-07-06
UNH Poll: Markey’s Lead Over Moulton Narrows Ahead of September Democratic Primary
masslive.com · 2026-07-05
Markey and Moulton will have first US Senate primary debate in WMass
Democrat · MA U.S. Senate
Seth Moulton
Seth Wilbur Moulton (born October 24, 1978) 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 .
Where Moulton standsRace →
Moulton 51.4%Ed Markey 51.7%
Market · wins
95¢
51.4%
Poll avg
95%
Win prob
$4.3M
Raised
In brief
—
No profile summary yet
Summaries are written and fact-checked against the underlying data in nightly batches. This candidate's hasn't been generated or verified yet.
Governing & voting record
Salem Maritime National Historical Park Redesignation and Boundary Study Act
2025 · BECAME LAW
250th Anniversary of the United States Marine Corps Commemorative Coin Act
2023 · BECAME LAW
To designate the facility of the United States Postal Service located at 51 Willow Street in Lynn, Massachuset
2018 · BECAME LAW
Modernizing Government Travel Act
2017 · BECAME LAW
Faster Care for Veterans Act of 2016
2016 · BECAME LAW
TPS Relief Act
2026 · SPONSORED
American High-Speed Rail Act
2026 · SPONSORED
Where they stand
—
Key positions not yet compiled
Positions are drawn from the candidate's public record and statements. We haven't compiled a verified set for this candidate yet.
Career & history
2015United States representative
since 2015
Public favorability
—
No favorability data
This candidate isn't tracked by YouGov's public-figure panel, and no published state polling on their favorability was found.
Independence scorecard
Who Moulton's money comes from.
B−
62/100
Independence index
A mixed funding picture — small-dollar reliance is the watch item.
2 watch items · small-dollar reliance
Small-dollar reliance22
11% of individual + PAC money from donors under $200
PAC independence80
5% of individual + PAC money from PACs
In-state funding48
52% of itemized receipts come from out of state
Outside-money exposure100
No significant outside spending in support so far
MONEY-MIX INDEX, COMPUTED FROM FEC FILINGS ONLY: SMALL-DOLLAR SHARE, PAC RELIANCE, IN-STATE MONEY AND OUTSIDE (IE) SPENDING. IT DOES NOT SCORE VOTES OR DONOR–VOTE ALIGNMENT. HIGHER = MORE INDEPENDENT · GREEN ≥70 · AMBER 50–69 · RED <50.
How Moulton votes
Ideological placement · roll-call record
Dem median
GOP median
Moulton
← LiberalCenterConservative →
Center-left
Overall lean
36
DW-NOMINATE · 0–100
DW-NOMINATE FIRST-DIMENSION SCORE FROM ROLL-CALL VOTES IN THE 119TH CONGRESS (HOUSE), VIA VOTEVIEW. 0 = MOST LIBERAL, 100 = MOST CONSERVATIVE.
Party unity · 513 roll-calls · 119th Congress (House)
98%voted with Democrats · 2% broke ranks
Ratings from advocacy groups
—
No advocacy-group ratings
Interest-group scorecards have no machine-readable feed — they're curated per candidate, and none are on file yet.
Donors & money
$4.3M
Raised
$2.8M
Spent
$3.3M
Cash on hand
Source of funds · individual + PAC
11% small (<$200)84% large indiv.5% PAC
48% in-state · 52% out-of-state (itemized)
Top industries · itemized $
Securities & investment$45k
Education$30k
Computers / electronics$14k
OWN-COMMITTEE TOTALS FROM FEC FILINGS THROUGH 2026-03-31 · INDUSTRY GROUPS ARE ITEMIZED RECEIPTS CLASSIFIED BY EMPLOYER — A KEYWORD APPROXIMATION, NOT OPENSECRETS CODING. SOURCE: FEC ↗
Race
MA · SENATE · 2026safe d
Moulton (D) vs Ed Markey (D)
51.4%−0.4 Markey51.7%
Open full race detail →
Related prediction markets
All markets →Will the Democrats win the Massachusetts Senate race in 2026?
Polymarket · Democrat
Will the Republicans win the Massachusetts Senate race in 2026?
Polymarket · Republican
Which party will win the 2026 US Senate election in Massachusetts?
predictit · Democratic Party
Which party will win the 2026 US Senate election in Massachusetts?
predictit · Republican Party
Massachusetts Senate winner?
Kalshi · vol $3 · Republican party
Massachusetts Senate winner?
Kalshi · Democratic party
Sources & provenance
Biography
Public record
Wikipedia + state records
Money & donors
FEC filings
itemized + committee totals
Markets
Live venues
Polymarket · Kalshi
ALL FIGURES DRAWN FROM PUBLICLY AVAILABLE RECORDS · CANDIDATE PROFILES ARE NONPARTISAN AND CARRY NO ENDORSEMENT. · PHOTO: PHIL ROEDER FROM DES MOINES, IA, USA · CC BY 2.0 (WIKIMEDIA COMMONS)