Maine Democratic Senate Primary Splits Over Candidate's Offensive Online Posts

Maine's Democratic primary to challenge Sen. Susan Collins has fractured into a sharp argument about electability, with two candidates offering opposite theories of how to defeat an entrenched incumbent in a cycle where the party's hunger for change is colliding with its need for credibility.

The flashpoint is Graham Platner, a 40-year-old combat veteran and oyster farmer who built early momentum by attracting considerable crowds to rallies and grassroots donations. Then various outlets reported he had previously made inflammatory comments on Reddit that included declaring himself a "communist" and disparaging rural voters and police officers. In multiple interviews, Platner apologized for those comments, saying they did not represent his current views.

His rival, Gov. Janet Mills, the 78-year-old two-term governor recruited into the race by Senate Democratic leader Chuck Schumer, argues those posts could doom Platner in a general election against Collins. Platner, leaning into a moment of widespread anti-establishment anger, counters that he is the safer choice.

Fresh polling told a more complicated story. The University of New Hampshire's Pine Tree State Poll, conducted as the Reddit revelations emerged, showed 58 percent of Democratic primary voters backing Platner and only 24 percent supporting Mills. Platner was losing ground in the press while widening his lead among the voters who will actually decide the nomination.

That gap illuminates the tension inside Schumer's broader Senate strategy. Schumer recruited Mills to run for Collins's seat as part of a plan to win back the Senate majority by backing well-known, tried-and-true candidates. The move sparked backlash from Democrats hungry for new leadership and a fresh approach, a frustration reinforced by the party's endorsement of Joe Biden's 2024 reelection campaign. Platner had embodied those Democrats' hopes, a candidate who promised something genuinely different from a carefully vetted establishment choice.

Now his Reddit history threatens to make him the clearest argument for the strategy he was running against.

Democrats must flip four Senate seats in 2026 to reclaim the majority, and Maine sits squarely on that map. At a town hall in Ogunquit on October 22, Platner made his case to voters. The question his campaign has not yet answered is whether anti-establishment energy can survive a general election against Collins in a way that Mills's biography and credibility, however uninspiring to the base, reliably can.