Primary Polls
| Race | Pollster | Date | Sample | Results |
|---|---|---|---|---|
| Senate · Democratic primary | Emerson College 2024 err 2.7 | 2026-08-29 | 550 LV | Ed Markey 65% · Seth Moulton 35% |
| Governor · Republican primary | University of New Hampshire | 2026-08-24 | 201 LV | Mike Minogue 55% · Brian Shortsleeve 11% · Unsure 25% |
| Senate · Democratic primary | University of New Hampshire | 2026-08-24 | 550 LV | Ed Markey 63% · Seth Moulton 28% · Unsure 7% |
| House · Democratic primary | Global Strategy Group (D) partisan·D | 2026-08-23 | 400 LV | Dan Koh 35% · Tram Nguyen 20% · John Beccia 12% · Jamie Belsito 8% |
| Senate · Democratic primary | Public Policy Polling (D) partisan·D 2024 err 2.0 | 2026-08-18 | 645 LV | Ed Markey 59% · Seth Moulton 26% · Unsure 15% |
| Senate · Democratic primary | Suffolk University | 2026-08-16 | 500 RV | Ed Markey 52% · Seth Moulton 38% · Unsure 9% |
| Governor · Republican primary | UMass Amherst/YouGov | 2026-08-12 | 209 RV | Mike Minogue 53% · Brian Shortsleeve 26% · Unsure 18% |
| Senate · Democratic primary | UMass Amherst/YouGov | 2026-08-12 | 445 LV | Ed Markey 60% · Seth Moulton 32% · Unsure 7% |
| House · Democratic primary | Z to A Research (D) partisan·D | 2026-08-06 | 469 LV | Stephen Lynch 50% · Patrick Roath 43% · Unsure 7% |
| House · Democratic primary | Global Strategy Group (D) partisan·D | 2026-08-02 | 400 LV | Dan Koh 34% · John Beccia 15% · Tram Nguyen 14% · Jamie Belsito 6% · Mariah Lancaster 3% · Unsure 24% |
| House · Democratic primary | Z to A Research (D) partisan·D | 2026-07-12 | — | Stephen Lynch 54% · Patrick Roath 32% · Unsure 14% |
| House · Democratic primary | Global Strategy Group (D) partisan·D | 2026-06-29 | 400 LV | Jake Auchincloss 64% · Jason Poulos 17% · Unsure 19% |
| Governor · Republican primary | University of New Hampshire | 2026-06-23 | 176 LV | Mike Minogue 46% · Brian Shortsleeve 15% · Unsure 39% |
| Senate · Democratic primary | University of New Hampshire | 2026-06-23 | 370 LV | Ed Markey 41% · Seth Moulton 35% · Unsure 23% |
Primary polls are shown here only — they never enter the general-election averages. Pollster names link to track records.