Incumbent Sen. Ed Markey's 82% implied probability in the Massachusetts Democratic Senate primary stems from his established polling leads over Rep. Seth Moulton, reinforced by Rep. Ayanna Pressley's December 2025 decision to forgo a challenge, consolidating progressive support behind the veteran senator. Recent November 2025 surveys, including UMass Amherst/WCVB showing Markey up 19 points and Suffolk/Globe polls confirming his edge, remain the dominant benchmarks amid no major developments in the past 30 days. Moulton, at 15%, sustains viability as a moderate alternative criticizing Markey's record, while minor candidates like Alexander Rikleen linger far behind. The September 1 primary looms, with filing deadlines imminent potentially clarifying the field in this incumbent-favoring contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedEd Markey 82%
Seth Moulton 14%
Alexander Rikleen <1%
Ayanna Pressley <1%
Ed Markey
82%
Seth Moulton
14%
Alexander Rikleen
<1%
Ayanna Pressley
<1%
Ed Markey 82%
Seth Moulton 14%
Alexander Rikleen <1%
Ayanna Pressley <1%
Ed Markey
82%
Seth Moulton
14%
Alexander Rikleen
<1%
Ayanna Pressley
<1%
If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other".
The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.
Market Opened: Dec 2, 2025, 3:26 PM ET
Resolver
0x2F5e3684c...If no 2026 Massachusetts Democratic Senate Primary takes place, this market will resolve to "Other".
The resolution source for this market will be the first announcement of the results from the Massachusetts Democratic party, however an overwhelming consensus of credible reporting may suffice.
Resolver
0x2F5e3684c...Incumbent Sen. Ed Markey's 82% implied probability in the Massachusetts Democratic Senate primary stems from his established polling leads over Rep. Seth Moulton, reinforced by Rep. Ayanna Pressley's December 2025 decision to forgo a challenge, consolidating progressive support behind the veteran senator. Recent November 2025 surveys, including UMass Amherst/WCVB showing Markey up 19 points and Suffolk/Globe polls confirming his edge, remain the dominant benchmarks amid no major developments in the past 30 days. Moulton, at 15%, sustains viability as a moderate alternative criticizing Markey's record, while minor candidates like Alexander Rikleen linger far behind. The September 1 primary looms, with filing deadlines imminent potentially clarifying the field in this incumbent-favoring contest.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated



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