Maine Governor Janet Mills suspended her Senate campaign Thursday, unable to match the fundraising prowess of progressive challenger Graham Platner, an oysterman making his first run for public office. Mills, 78, cited inadequate financial resources despite backing from Senate Democratic leader Chuck Schumer and the party establishment. The two-term governor raised just $2.6 million in early 2026, far below what competitive Senate campaigns require in this key battleground state.

Platner, 41, has built a commanding lead in Maine Democratic primary polls, outpacing Mills by more than 30 percentage points among likely voters. His campaign gained traction through town halls drawing large crowds and strong online donor support, attracting endorsements from Senator Bernie Sanders and aides to New York Mayor Zohran Mamdani. The generational contrast between the political newcomer and the veteran governor resonated with primary voters seeking fresh voices.

Mills's exit represents a significant setback for Schumer's establishment approach to candidate selection, which has dominated Democratic Senate races for nearly two decades. Her departure opens the path for Platner to challenge Republican Susan Collins, a five-term moderate who has consistently defied Democratic predictions of vulnerability. Collins, 73, has directed substantial federal projects to Maine while cultivating a reputation as a pragmatic centrist.

The race now tests whether Platner's progressive message and grassroots fundraising model can translate to a statewide victory against an entrenched incumbent. His campaign survived damaging revelations about past online comments and a controversial tattoo, suggesting resilience that could serve him well in the general election contest.