Massachusetts Senate polls
Ed Markey (D) vs John Deaton (R). The polls the model aggregates, each with its weight and source, then every public poll on file. The forecast itself lives on the race page.
Adjusted aggregateD+17.8same figure as the race page
Polls99 recorded polls · 9 eligible for the aggregate · 8 with positive weight
Latest field dateAug 24Eligible polls: latest poll: 2026-08-24 (20 days old)
EditionSep 13weights and corrections as of this edition
The polls the model reads
hover, tap or Tab to any poll- counted poll · area is its model weight
- weight exactly zero · shown, not counted
- poll trend · smoothed across nearby polls, larger and non-partisan ones count more · the recent end firms up as polls arrive
- published average
- 30 days before this edition
Every poll on file · 12
newest first10 in the aggregate · 2 shown, not counted · 13 primary polls on file, not listed here
| Pollster | Fielded | Added | Sample | Result | Weight | Source |
|---|---|---|---|---|---|---|
| ●University of New Hampshire Survey CenterGeneral | 906 LV | Ed Markey 49John Deaton 30Don't know 12Joe Tache 7Someone else 1+3 other releases | 0.310 | Poll release | ||
| ●University of Massachusetts Department of Political Science/YouGovGeneral · Senate | 800 RV | Ed Markey 51John Deaton 30+1 other release | 0.260 | Poll release | ||
| ●YouGovGeneral | 800 RV | Ed Markey 51John Deaton 30Don't know 15Would not vote 3+1 other release | 0.260 | Poll release | ||
| ●University of New Hampshire Survey CenterGeneral | 618 LV | Ed Markey 50John Deaton 34Don't know 16Someone else 0+3 other releases | 0.033 | Poll release | ||
| ●Suffolk UniversityGeneral · Senate | 500 RV | Ed Markey 55John Deaton 30+3 other releases | 0.031 | Poll release | ||
| ●University of New Hampshire Survey CenterGeneral · Senate | 603 LV | Ed Markey 55John Deaton 32+3 other releases | 0.004 | Poll release | ||
| ●University of New Hampshire Survey CenterGeneral · Senate | 616 LV | Ed Markey 56John Deaton 27+3 other releases | 0.000 | Poll release | ||
| ●CygnalGeneral · REP sponsor · REP partisan | 800 LV | Ed Markey 54John Deaton 30 | 0.000 | News coverage | ||
| ●Suffolk UniversityGeneral · Senate | 500 RV | Seth Moulton 52John Deaton 29+3 other releases | 0.000 | Poll release | ||
| ●SurveyUSAGeneral · Senate | 775 RV | Ed Markey 45John Deaton 26+1 other release | 0 · not counted | Poll release | ||
| YouGovGeneral | 700 A | Ed Markey 35Don't know 33Charles D. Baker 33 | not in the aggregate | Poll release | ||
| MassINC Polling GroupGeneral | 582 LV | Charles D. Baker 40Ed Markey 34Don't know 20Would not vote 3Someone else 3 | not in the aggregate | Poll release |
Archive source date 2026-09-13. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.
Model rows carry what the source record provides: pollster, field dates, sample size and D/R shares where published. Archive rows come from the broad public harvest. Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.