Massachusetts Senate polling average
Massachusetts Senate: Monolith Average
Ed Markey (D) · John Deaton (R)
Monolith Average · nonpartisan polls
D+28.2
Ed Markey (D) 55.4% · John Deaton (R) 27.3%
2 pollsters
2 pollsters
Monolith Average (All Polls)
D+28.2
Ed Markey (D) 55.4% · John Deaton (R) 27.3%
2 pollsters
2 pollsters
Updated 2026-10-30 14:41 CT. Margin = first-listed candidate minus second; undecided voters are not allocated. Polls from the last 30 days; each pollster counts once (its latest poll); weights favor larger, newer polls. How we calculate this.
Monolith Average: daily margin since Oct. 1
Above the dashed line = first-listed candidate leads (positive margin); gaps = fewer than 2 pollsters that day.
Monolith Average (All Polls): daily margin since Oct. 1
Above the dashed line = first-listed candidate leads (positive margin); gaps = fewer than 2 pollsters that day.
Polls
| Pollster | Dates | Sample | Markey | Deaton | Other | Sponsor type | Used in | Source | Notes |
|---|---|---|---|---|---|---|---|---|---|
| University of Massachusetts Lowell Center for Public Opinion/YouGov | 2026-10-07 to 2026-10-18 | 850 LV | 55.0 | 26.0 | Nonpartisan | Both | source | Approved: automatic: both figures found next to the names in the release text | |
| Suffolk University for The Boston Globe | 2026-10-14 to 2026-10-17 | 500 LV | 60.0 | 32.0 | Nonpartisan | Superseded by newer poll | source | Other answers: Joe Tache 1.0, Shriya Ayyadurai 1.0 | |
| University of Massachusetts Department of Political Science/YouGov for WCVB-TV | 2026-10-05 to 2026-10-12 | 800 RV | 56.0 | 29.0 | Nonpartisan | Both | source | Other answers: Joe Tache 3.0, Shriya Ayyadurai 6.0 | Approved: automatic: both figures found next to the names in the release text |
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