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Seth Moulton Launches 2026 Primary Challenge to Sen. Ed Markey in Massachusetts

Moulton casts the race as a generational test for Democrats.

Overview

  • The six-term congressman announced his bid with a video arguing Markey should not seek another six-year term at age 80 and urging Democrats to move beyond the “status quo.”
  • An Advantage/Fiscal Alliance Foundation poll cited in coverage showed Moulton leading Markey 43% to 21% among likely voters, and 38% to 30% among Democrats.
  • Markey, a veteran lawmaker first elected to Congress in 1976 and a Green New Deal co-author, is countering with endorsements from Sen. Elizabeth Warren, much of the state delegation, the Mass. Nurses Association and the League of Conservation Voters Action Fund.
  • The challenge sets up a high-profile Democratic primary likely to draw national attention and triggers an open contest for Moulton’s North Shore U.S. House seat.
  • Moulton, a Marine Corps veteran known for bucking party leaders, brings both a reformist profile and liabilities, including criticism over his 2024 comments on transgender athletes.