Massachusetts Senate Race 2026
Latest sourced poll, full poll history, Cook and DDHQ ratings, and candidates. Research snapshot checked 2026-10-22.
Latest poll
Ed Markey (Democrat)60%
John Deaton (Republican)32%
Boston Globe/Suffolk*, fielded 2026-10-10 to 2026-10-18
Cook rating 2026-10-20 · DDHQ forecast 2026-10-22. Win chance, not vote share.
n=500 / Not reported by source. RealClearPolling
Lead of 28 pts for Ed Markey in a single poll. Not a win probability.
Ratings and forecast
- Cook rating
- Solid D
- DDHQ rating
- Safe D
- DDHQ Dem win chance
- 99%
- Currently held by
- D
Candidates
- Ed MarkeyDemocrat
- John DeatonRepublican
Seat / incumbent: Markey
Poll history (15)
| Pollster | Field dates | Results | Sample / method | Source |
|---|---|---|---|---|
| Boston Globe/Suffolk* | 2026-10-10 to 2026-10-18 | Ed Markey (Democrat) 60%John Deaton (Republican) 32% | n=500 / Not reported by source | RealClearPolling Original release |
| Suffolk University | 2026-10-14 to 2026-10-18 | Ed Markey (Democrat) 60%John Deaton (Republican) 32% | n=500 / Unknown | Poliwave Original release |
| WCVB-TV/Amherst* | 2026-10-05 to 2026-10-12 | Ed Markey (Democrat) 56%John Deaton (Republican) 29% | n=800 / Not reported by source | RealClearPolling Original release |
| UMass Amherst/YouGov | 2026-10-05 to 2026-10-12 | Ed Markey (Democrat) 54%John Deaton (Republican) 28% | n=800 / Unknown | Poliwave Original release |
| CWB/MassINC* | 2026-09-14 to 2026-09-22 | Ed Markey (Democrat) 54%John Deaton (Republican) 28% | n=800 / Not reported by source | RealClearPolling Original release |
| MassINC Polling Group/CommonWealth Beacon | 2026-09-14 to 2026-09-22 | Ed Markey (Democrat) 52%John Deaton (Republican) 26% | n=800 / MassINC Polling Group survey for CommonWealth Beacon of Massachusetts likely voters. Initial preference stored; with leaners Markey 54, Deaton 28, Tache 2, Ayyadurai 3, another 3, undecided 9, refused 2. | Poliwave Original release |
| UNH* | 2026-09-17 to 2026-09-21 | Ed Markey (Democrat) 53%John Deaton (Republican) 30% | n=564 / Not reported by source | RealClearPolling Original release |
| UNH Survey Center/Bay State Poll | 2026-09-17 to 2026-09-21 | Ed Markey (Democrat) 53%John Deaton (Republican) 30% | n=564 / UNH Survey Center Bay State Poll: online panel plus text-to-web; result among likely general-election voters. Another candidate under 1% (not stored). | Poliwave Original release |
| University of New Hampshire | 2026-08-20 to 2026-08-24 | Ed Markey (Democrat) 49%John Deaton (Republican) 30% | n=881 / Unknown | Poliwave Original release |
| UMass Amherst/YouGov/WCVB | 2026-08-05 to 2026-08-12 | Ed Markey (Democrat) 51%John Deaton (Republican) 30% | n=800 / University of Massachusetts Amherst/WCVB poll fielded by YouGov; 833 interviews matched to 800 registered voters. | Poliwave Original release |
| UNH Survey Center/Bay State Poll | 2026-06-18 to 2026-06-23 | Ed Markey (Democrat) 50%John Deaton (Republican) 34% | n=623 / UNH Survey Center Bay State Poll: online panel plus text-to-web; result among likely general-election voters. Another candidate under 1% (not stored). | Poliwave Original release |
| Suffolk University/Boston Globe | 2026-06-08 to 2026-06-12 | Ed Markey (Democrat) 55%John Deaton (Republican) 29.8% | n=500 / Suffolk University Political Research Center/Boston Globe survey of Massachusetts registered voters (vote or lean). | Poliwave Original release |
| University of New Hampshire | 2026-04-16 to 2026-04-20 | Ed Markey (Democrat) 55%John Deaton (Republican) 32% | n=603 / Unknown | Poliwave |
| UNH Survey Center/Bay State Poll | 2026-02-12 to 2026-02-16 | Ed Markey (Democrat) 56%John Deaton (Republican) 27% | n=620 / UNH Survey Center Bay State Poll: online panel plus text-to-web; result among likely general-election voters. | Poliwave Original release |
| Cygnal (R) | 2026-01-22 to 2026-01-25 | Ed Markey (Democrat) 54%John Deaton (Republican) 30% | n=800 / Unknown | Poliwave Original release |
Polls via secondary aggregators, not independently audited. Not a live feed.
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