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2026 Massachusetts Republican Senate Primary Polls, Odds & Candidates

Name: 2026 Massachusetts Republican Senate Primary Polls, Odds & Candidates — prediction market odds
Creator: kalshi

Market closes: Sep 8, 8:00am ET (Sep 8, 12:00pm UTC)

Massachusetts Republican Senate nominee?

$64.2K

SEP 8, 2026

Primary Election

Party selects its nominee.

J. Deaton

100.0%

L. Evangelidis

0.0%

C. Baker

0.0%

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Discovery Insights Elections Candidates Calendar Watchlist

Search elections and candidates

Discovery Insights Elections Candidates Calendar Watchlist

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OddsLive Odds

Prediction market probabilities from Kalshi, updated as market prices change. Last updated Sep 1, 2026, 8:38 AM UTC.

Odds History

Total volume

$64.2K

24h volume

$40.9K

J. Deaton100%

C. Thrasher0%

L. Evangelidis0%

No chart data available yet.

source: Kalshi

Election Dates and Deadlines

Important voting dates, registration deadlines and prediction market closing times.

September

TUE 8

Prediction market closes

Latest Election News

Recent reporting and announcements directly related to this race and its candidates.

AINews Summary

John Deaton remains unopposed for the Massachusetts Republican Senate nomination. Recent news has centered on the Democratic primary, where Ed Markey is leading Seth Moulton in new polling. That same poll also showed Markey ahead of Deaton in hypothetical general-election matchups. The GOP nomination market looks settled if Deaton stays unopposed, which should keep uncertainty low. The new polling mainly affects the general-election outlook, not the Republican nomination race.

Articles

WTWorcester Telegram & Gazette15 hours ago

Massachusetts voters head to polls today. Follow live updates

Key races to watch include the face off between Sen. Ed Markey and Rep. Seth Moulton for the Democrate Senate nomination and what will happen with Moulton's empty seat.

TBThe Boston Globe16 hours ago

Recapping the Globe's primary endorsements

Tuesday is primary day in Massachusetts. Here is a recap of the Globe editorial board's endorsements in some of those races.

NNewsweek1 day ago

Seth Moulton’s Chances of Defeating 80-Year-Old Ed Markey: Final Polls

Moulton says it's time for new Democratic leadership in D.C. Are Massachusetts voters ready to pick him over their longtime senator?

T1The 19th*2 days ago

Sen. Markey is unflinching in support for trans rights

As his party wavers on its full backing of transgender rights, the 80-year-old Democratic senator is getting a boost from his unflinching support.

WTWorcester Telegram & Gazette1 day ago

MA statewide primary is Tuesday. What to know in Worcester

Polls will open at 7 a.m. and close at 8 p.m.

TBThe Boston Herald3 days ago

Sanders, Warren, Pressley stump for Sen. Ed Markey

Just days before a highly-contested primary election against Seth Moulton, Sen. Ed Markey brought some of the most notable progressive political figures to Boston for a Saturday campaign rally.

WEWashington Examiner3 days ago

Obama returns to the campaign trail amid GOP redistricting and fundraising advantage

Obama is headlining a fundraiser on Martha's Vineyard, Massachusetts on Monday for his former Attorney General Eric Holder's organization, the National Democratic Redistricting Committee.

NBNBC10 Boston5 days ago

MA gets ready for primary election next week

Massachusetts Secretary of State Bill Galvin spoke ahead of the primary on Tuesday, Sept. 1, and the general election in November.

NYNew York Magazine1 day ago

The Postal Service Could Be a Huge Problem in the Midterms

The postal service could be a huge problem in the midterms. The Supreme Court is considering Trump’s scheme for the mass rejection of mail ballots. Whatever happens, many ballots may be tossed due to USPS delays.

QPQuincy Patriot Ledger5 days ago

Third poll shows Markey leading Moulton by wide margin. See numbers

With the primary less than a week away, another poll found Sen. Ed Markey pulling away from Rep. Seth Moulton in the Democratic primary for Senate.

New updates coming soon

We're monitoring and will update when new data impacts the race.

Polls
Endorsements
Fundraising

2026 Massachusetts Republican Senate Primary Polls, Odds & Candidates

Massachusetts Republican Senate nominee?

OddsLive Odds

Odds History

Election Dates and Deadlines

Latest Election News

Massachusetts voters head to polls today. Follow live updates

Recapping the Globe's primary endorsements

Seth Moulton’s Chances of Defeating 80-Year-Old Ed Markey: Final Polls

Sen. Markey is unflinching in support for trans rights

MA statewide primary is Tuesday. What to know in Worcester

Sanders, Warren, Pressley stump for Sen. Ed Markey

Obama returns to the campaign trail amid GOP redistricting and fundraising advantage

MA gets ready for primary election next week

The Postal Service Could Be a Huge Problem in the Midterms

Third poll shows Markey leading Moulton by wide margin. See numbers

Related Races

Massachusetts Democratic Senate nominee?

Massachusetts Governor winner?

MA-08 Democratic nominee?

MA-01 Democratic nominee?

Election Dates and Deadlines

Latest Election News

Massachusetts voters head to polls today. Follow live updates

Recapping the Globe's primary endorsements

Seth Moulton’s Chances of Defeating 80-Year-Old Ed Markey: Final Polls

Sen. Markey is unflinching in support for trans rights

MA statewide primary is Tuesday. What to know in Worcester

Sanders, Warren, Pressley stump for Sen. Ed Markey

Obama returns to the campaign trail amid GOP redistricting and fundraising advantage

MA gets ready for primary election next week

The Postal Service Could Be a Huge Problem in the Midterms

Third poll shows Markey leading Moulton by wide margin. See numbers

Related Races

Massachusetts Democratic Senate nominee?

Massachusetts Governor winner?

MA-08 Democratic nominee?

MA-01 Democratic nominee?