Emerson College
40%30%20%10%0%
32.3%
Democrat
Seth Moulton
Democratic candidate for U.S. Senate in Massachusetts
Democrat
Massachusetts Democratic Senate nominee?
$442.9K
SEP 16, 2026Primary Election
Party selects its nominee.
Live Odds
Current prediction-market probability for the candidate, updated as market prices change.
Seth Moulton is trading at 15% to win the Massachusetts Democratic Senate nominee? on prediction markets.
Candidate Overview
Key details about the candidate’s background, party, office sought and current campaign.
Current roleU.S. Representative
PartyDemocratic
Political ideologyModerate Democrat
Age47 years old (Oct 24, 1978)
GenderMale
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LocationMassachusetts
BackgroundU.S. Representative
EducationHarvard College (B.S., Physics)
Notable personal detailsSeth Wilbur Moulton is a U.S. Representative for Massachusetts's 6th congressional district, serving since 2015. A Marine Corps veteran, he served four tours in Iraq and left the service with the rank of captain. He earned a B.S. in physics from Harvard College and later completed joint graduate degrees at Harvard Business School and Harvard Kennedy School. He is married to Liz Moulton and has two children.
SourcesShowHide
moulton.house.goven.wikipedia.orgcongress.govapnews.comnypost.comciclt.netlinktr.eedemocracyinaction.usjustfacts.votesmart.orgpbs.orgsethmoulton.comfoxnews.comontheissues.orggivegreen.comclerk.house.govnewdemocratcoalition.house.govnewjerseyglobe.comswampscotttides.orgwgbh.orgwbur.orgaxios.combostonglobe.comfacebook.comjewishinsider.comwashingtonpost.comnewbedfordlight.orgbostonherald.comitemlive.compolitifact.comnbcnews.comedmarkey.comnotus.orghistory.house.govbioguide.congress.govcha.house.govsenate.govsubstack.govtrack.ushouse.govgovinfo.govdocquery.fec.govfec.govfr.wikipedia.orgcommons.wikimedia.orgupload.wikimedia.orgdirectory.house.gov
Political Positions
LiberalConservative
Economy & Taxes
Supports raising revenue by closing tax loopholes and increasing taxes on corporations and wealthy households, including raising the corporate tax rate, taxing capital gains as ordinary income, reforming the estate tax, and ending common tax shelters; proposes using the revenue to expand programs such as healthcare, climate action, and support for the middle class.
Healthcare
Supports the Affordable Care Act and expanding access to care through targeted government programs and reforms rather than adopting a single‑payer Medicare for All system. Focuses on expanding mental‑health services, protections for maternity and disability care, and legislation to extend ACA premium tax credits and improve coverage affordability. Opposes full single‑payer proposals while advocating government action to lower costs and broaden access.
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Immigration & Border
Supports expanded legal pathways and a pathway to citizenship, defends DACA and Temporary Protected Status, and opposes aggressive or abusive immigration enforcement tactics while calling for accountability and limits on enforcement expansion. Advocates humane immigration processing, targeted foreign aid to address root causes, and has introduced legislation to redirect ICE funding and increase oversight of immigration agents.
Abortion & Reproductive Rights
Supports abortion and reproductive rights, endorses federal protections such as the Women’s Health Protection Act to enshrine reproductive choice, and opposes restrictions that limit access (including support for repealing the Hyde Amendment).
Climate & Energy
Seth Moulton supports aggressive federal climate action, including endorsing the Green New Deal and backing major clean-energy investments such as those in the Inflation Reduction Act. He advocates expanding renewable energy, carbon pricing, and ending fossil fuel extraction on federal lands while also supporting low-carbon nuclear and fusion research. His public statements and voting record emphasize climate mitigation and large-scale clean-energy investment.
Public Safety & Guns
Supports banning assault weapons and high-capacity magazines, expanding universal background checks, and enacting/strengthening red flag (extreme risk protection) laws; has called for holding gun manufacturers accountable and other ‘common-sense’ gun-safety measures. Has voted in favor of federal assault-weapons restriction measures and is a member of the House Gun Violence Prevention Task Force.
Latest News
AINews Summary
Last updatedAug 4, 2026
Seth Moulton is in the news for his challenge to Sen. Ed Markey in the Massachusetts Democratic Senate primary, which is now in its final stretch. The two have been debating repeatedly, and their latest forum featured clashes over foreign policy, health care, affordability, trans rights, age in politics, and Moulton’s criticism of Markey over Jeffrey Epstein references. Moulton has also been pushing a generational-change message, launching his first TV ad and pressing Markey to release health records. The primary is set for September 1.
moulton.house.gov+44
Articles
NBNBC10 Boston9 days ago
Moulton and Markey spar in Democratic primary debate
Neutral
PNPBS News9 days ago
WATCH LIVE: Massachusetts' U.S. Senate Democratic primary debate
Neutral
TBThe Boston Herald16 days ago
Desperate Seth Moulton goes low in new attack against Ed Markey
Neutral
MMassLive1 month ago
Markey and Moulton will have first senate debate in Western Massachusetts
Neutral
Latest Polls
Recent polling results and the candidate's current average in the race.
Aggregation source: FiftyPlusOne
Endorsements
5Massachusetts Democratic Senate nominee?
Campaign Fundraising
Latest report: Cycle 2024Campaign finance totals from the latest available reporting period.
Total raisedCash on hand
$2.9M
$2.2M
$1.5M
$727.1K
$0
2022
2024
LatestYear
Total raised
Cash on hand
Total spent
Burn rate
Cycle 2022
$2.1M
$769.3K
$1.6M
$67.2K
Cycle 2024
$2.9M
$1.9M
$1.8M
$76.1K
Source: FEC