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John Deaton Launches 2026 Senate Bid Against Ed Markey in Massachusetts

State GOP leaders will vote Nov. 20 on an early endorsement, spotlighting his pitch to be an independent voice.

Overview

  • Deaton kicked off his campaign in Worcester with a video labeling Markey "MIA" and vowing to focus on affordability, accountability and working families.
  • The Marine veteran and attorney is the first Republican to enter the race, returning after losing to Elizabeth Warren by about 20 points in 2024.
  • Dozens of Republican State Committee members signed a letter prompting the Nov. 20 endorsement vote, a move that could effectively prevent a contested GOP primary and bolster party fundraising.
  • Markey’s campaign dismissed Deaton as a past landslide loser and cast him as aligned with MAGA, while Deaton stresses independence, has said he would not vote for Trump, and previously disclosed supporting Joe Biden in 2020.
  • On the Democratic side, Markey faces a primary challenge from Rep. Seth Moulton, with Rep. Ayanna Pressley still a possible entrant, and recent polling shows Markey holding an early lead.