Overview
- The Cook Political Report moved the New Hampshire Senate race from "Lean Democrat" to "Toss Up" on Tuesday, reflecting closer public and private polling.
- A co/efficient likely‑voter survey fielded Sept. 9–11 found John E. Sununu and Rep. Chris Pappas tied at 46 percent each with about 9 percent undecided.
- The same poll showed both nominees with negative net favorability, with Sununu at 41 percent favorable and 47 percent unfavorable and Pappas at 37 percent favorable and 51 percent unfavorable.
- National Republican groups and pro‑Trump super PACs have poured large sums into the state and Democrats are pressing national committees to boost spending in response.
- Republicans hold a 53–47 Senate majority making New Hampshire one of several toss‑ups that could determine control, and both campaigns are expected to intensify advertising and turnout efforts with under seven weeks to Election Day.