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Pappas and Sununu Win New Hampshire Primaries, Setting November Senate Rematch

This race could determine control of the U.S. Senate.

Overview

  • Tuesday’s primaries produced Rep. Chris Pappas as the Democratic nominee and former Sen. John E. Sununu as the Republican nominee for Jeanne Shaheen’s open U.S. Senate seat.
  • The contest now moves to a Nov. 3 general election that pits a moderate, well‑funded Democrat against a Republican with strong family name recognition.
  • Stefany Shaheen won the crowded Democratic primary for New Hampshire’s 1st Congressional District while Anthony DiLorenzo secured the Republican nod, reshaping competitive down‑ballot battles created by Pappas’s Senate bid.
  • The Democratic primary highlighted center versus progressive tensions after Pappas defeated Karishma Manzur, and endorsements from figures like Sen. Shaheen, Vice President Kamala Harris, and President Trump already shaped messaging and turnout.
  • Because New Hampshire often splits tickets, outside groups and national parties plan heavy spending and get‑out‑the‑vote efforts, making independent voters and last‑minute mobilization key factors to watch before November.