Wedgewood Polls 1 Oct 2026* 27 Sept 2026 – 1 Oct 2026 400 — Jackson (D) 52.0% new Collins (R) 48.0% new Source for Wedgewood Polls poll (opens in a new tab) co/efficient (R) 30 Sept 2026* 28 Sept 2026 – 30 Sept 2026 1,240 — Collins (R) 48.0% new Jackson (D) 46.0% new Source for co/efficient (R) poll (opens in a new tab) InsiderAdvantage (R) 23 Sept 2026* 22 Sept 2026 – 23 Sept 2026 1,200 — Collins (R) 46.0% new Jackson (D) 46.0% new Source for InsiderAdvantage (R) poll (opens in a new tab) New York Times/Siena University 24 Sept 2026 15 Sept 2026 – 22 Sept 2026 619 — Collins (R) 49.0% new Jackson (D) 46.0% new Source for New York Times/Siena University poll (opens in a new tab) Fabrizio Ward (R)/ Impact Research (D) 1 Oct 2026 20 Sept 2026 – 22 Sept 2026 982 — Jackson (D) 50.0% new Collins (R) 47.0% new Source for Fabrizio Ward (R)/ Impact Research (D) poll (opens in a new tab) University of New Hampshire 24 Sept 2026 17 Sept 2026 – 21 Sept 2026 1,312 — Jackson (D) 51.0% new Collins (R) 47.0% new Source for University of New Hampshire poll (opens in a new tab) Quantus Insights (R) 16 Sept 2026 14 Sept 2026 – 15 Sept 2026 621 — Collins (R) 48.0% +3.0 percentage points Jackson (D) 47.0% new Source for Quantus Insights (R) poll (opens in a new tab) University of Massachusetts/YouGov 24 Sept 2026 28 Aug 2026 – 14 Sept 2026 650 — Jackson (D) 48.0% new Collins (R) 43.0% new Source for University of Massachusetts/YouGov poll (opens in a new tab) Rasmussen Reports (R) 11 Sept 2026 8 Sept 2026 – 10 Sept 2026 1,033 — Jackson (D) 46.0% new Collins (R) 45.0% new Source for Rasmussen Reports (R) poll (opens in a new tab) YouGov 9 Sept 2026 2 Sept 2026 – 8 Sept 2026 1,335 — Jackson (D) 48.0% new Collins (R) 44.0% new Source for YouGov poll (opens in a new tab) SSRS 9 Sept 2026 31 Aug 2026 – 6 Sept 2026 880 — Jackson (D) 48.0% new Collins (R) 45.0% new Source for SSRS poll (opens in a new tab) Abacus Data 2 Sept 2026 26 Aug 2026 – 28 Aug 2026 327 — Jackson (D) 52.0% new Collins (R) 43.0% new Source for Abacus Data poll (opens in a new tab) Beacon Research (D)/ Shaw & Co. Research (R) 12 Aug 2026 6 Aug 2026 – 10 Aug 2026 1,000 — Jackson (D) 48.0% new Collins (R) 46.0% new Source for Beacon Research (D)/ Shaw & Co. Research (R) poll (opens in a new tab) Hart Research (D) 6 Aug 2026 27 Jul 2026 – 1 Aug 2026 802 — Jackson (D) 49.0% new Collins (R) 45.0% new Source for Hart Research (D) poll (opens in a new tab) Z to A Research (D) 9 Jul 2026 7 Jul 2026 – 8 Jul 2026 988 — Collins (R) 48.0% new Jackson (D) 47.0% new Source for Z to A Research (D) poll (opens in a new tab) Public Policy Polling (D) 8 Jul 2026 7 Jul 2026 – 7 Jul 2026 785 — Jackson (D) 49.0% new Collins (R) 44.0% −1.0 percentage points Source for Public Policy Polling (D) poll (opens in a new tab) Tavern Research (D) 6 Jul 2026 3 Jul 2026 – 6 Jul 2026 1,074 — Platner (D) 52.0% +1.0 percentage points Collins (R) 48.0% −1.0 percentage points Source for Tavern Research (D) poll (opens in a new tab) Beacon Research (D)/Shaw & Co. Research (R) 30 Jun 2026 23 Jun 2026 – 27 Jun 2026 1,003 — Collins (R) 50.0% new Platner (D) 47.0% new Source for Beacon Research (D)/Shaw & Co. Research (R) poll (opens in a new tab) The New York Times/Portland Press Herald/Siena University 29 Jun 2026 19 Jun 2026 – 26 Jun 2026 608 — Platner (D) 49.0% new Collins (R) 47.0% new Source for The New York Times/Portland Press Herald/Siena University poll (opens in a new tab) Wick (R)/2WAY 16 Jun 2026 11 Jun 2026 – 14 Jun 2026 1,008 — Platner (D) 48.0% new Collins (R) 45.0% new Source for Wick (R)/2WAY poll (opens in a new tab)