G2026 Massachusetts US Senate
G2026 Massachusetts US SenateForecasted Win Probability
Democrats
Republicans
Decision Desk HQ's forecast for this race blends 61% fundamentals, 14% polls, and 25% markets. Fundamentals capture the structural conditions of the race, including partisan baseline adjusted for national environment, incumbency, presidential party cycle effects, and net campaign financial advantage.
| Candidate | Result |
|---|---|
| Seth Moulton | 50.00% |
| John Deaton | 30.00% |
| Other Option | 20.00% |
| Candidate | Result |
|---|---|
| Edward Markey | 55.00% |
| John Deaton | 29.80% |
| Other Option | 15.20% |
| Candidate | Result |
|---|---|
| Seth Moulton | 56.00% |
| John Deaton | 25.00% |
| Other Option | 19.00% |