US Midterms 2026
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Recent coverage for Massachusetts Senate.
In the United States, Democratic Senators Jeff Merkley of Oregon and Ed Markey of Massachusetts introduced a joint resolution of disapproval aimed at blocking President Donald Trump’s administration’s agreement with…
Dionne for State Treasurer. Elizabeth Dionne is a Republican candidate for Massachusetts state treasurer, an attorney, and former chair of the Belmont Select Board.
MarkeyUS Sens. Ed Markey and Jeff Merkley on Thursday continued to push back against President Donald Trump's proposed nuclear energy agreement with Saudi Arabia, setting up a vote on legislation that could block the deal…
MarkeyThe voter registration deadline is Saturday, Oct. 24. Online registration is available until 11:59 p.m.
Washington, D.C. – Oregon’s U.S. Senator Jeff Merkley: a senior member of the Senate Foreign Relations Committee: and Massachusetts’ U.S. Senator Edward J.
One could probably call it “Mass. Senate Debate Light”: plenty of probing criticisms from both participants: but minus the heavy dose of acrimony which colored the partisan primary debate square offs. U.S.
Governor and Lieutenant Governor: Maura Healey and Kim Driscoll (D); Michael Minogue and Shawn Oliver (R); Andrea James and Kayla Kittredge (I).
There are 35 Senate seats up for grabs in the 2026 midterm elections.
DeatonIn the Massachusetts race for U.S. Senate, Sen. Ed Markey is running for what he says will be his last term, while Republican John Deaton is once again challenging a democratic incumbent.
MarkeyFour Democratic lawmakers urged the Federal Aviation Administration on October 14 to conduct a site-specific environmental review of Amazon ($AMZN)'s proposed Prime Air drone delivery hub in Westborough, Massachusetts.
MarkeyA Democratic senator is facing accusations of racial and sexual discrimination over a controversial social media post encouraging members of minority groups to apply for a role in his office.
MarkeySen. Ed Markey, right, and moderator Jon Keller, left, listen to U.S. Senate candidate John Deaton at Tuesday night's debate at WBZ-TV's studio in Boston. Credit: WBZ-TV
MarkeyIf Deaton wins, Markey said the Massachusetts Republican would be a vote to continue the GOP majority in the Senate and the Trump agenda.
MarkeyNo story this week names this candidate.
The green line is the TruthIndex™, the chance of this outcome. It combines the prices on both venues and gives more weight to the venue with more money in its order book. The two thinner lines are Polymarket's and Kalshi's own prices, and the grey band between them shows how far apart the two venues are.
The pale bands behind the lines are the rating zones (Toss-up, Lean, Likely and Safe), so you can see when the race moved from one rating to another. Move along the chart, or use the arrow keys, to read the values for each day.
More in Methodology| Outcome | TruthIndex™ | Polymarket | Kalshi | Spread | 24h | |
|---|---|---|---|---|---|---|
| DEd Markey | 98.0% | 98.2% | 98.0% | 0.2 pts | – | |
| RJohn Deaton | 2.0% | 1.6% | 2.0% | 0.4 pts | – |
Image cards with the current TruthIndex™, for posts and stories.
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Democratic U.S. senator from Massachusetts since 2013 and House member from 1976 to 2013, running for a third full Senate term against Republican John Deaton in 2026.
John Deaton is a Marine Corps veteran and attorney who lost the 2024 U.S. Senate race in Massachusetts and is the 2026 Republican nominee against Ed Markey.
Each venue's margin market, shown on its own: the two venues set their ranges differently.
Massachusetts Senate margin of victory
| Markey, 21+ pts | 89.5% | |
| Markey, 23+ pts | 81.5% | |
| Markey, 25+ pts | 72.5% | |
| Markey, 27+ pts | 62.5% | |
| Markey, 29+ pts | 50.5% | |
| Markey, 31+ pts | 37.5% | |
| Markey, 33+ pts | 26.5% | |
| Markey, 35+ pts | 20.5% | |
| Markey, 37+ pts | 14.5% | |
| Markey, 39+ pts | 11.5% | |
| Markey, 41+ pts | 10.7% | |
| Markey, 43+ pts | 6.8% |
Massachusetts Senate Election Margin of Victory
| Republican Wins | 0.4% | |
| Democrat 0-10% | 1.9% | |
| Democrat 10-15% | 1.7% | |
| Democrat 15-20% | 5.3% | |
| Democrat 20-25% | 17.5% | |
| Democrat 25-30% | 24.0% | |
| Democrat 30-35% | 30.5% | |
| Democrat 35-40% | 21.5% | |
| Democrat 40-45% | 5.4% | |
| Democrat 45%+ | 4.3% |
Prices which party wins.
Ed Markey: Counted · bid 97.8% / ask 98.5% · $4.0K within 5 pts
This market will resolve according to the winner of the 2026 midterm Massachusetts U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The candidates may be named in the contract for the convenience of traders. In the event that any named candidate is replaced as the nominee of their respective party prior to election day, the name in the contract will be updated and the market will resolve based on the replacement nominee of the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.
Full rules on PolymarketPrices which party wins.
Ed Markey: Counted · bid 97.8% / ask 98.1% · $42.5K within 5 pts
Contract shown: Ed Markey
If a representative of the Democratic party is sworn in as a Senator of Massachusetts for the term beginning in 2027, then the market resolves to Yes.
This market is eligible for accelerated determination after a consensus of media organizations project the winner. See full rules for details.
