Graham Platner's Platner's disastrous candidacy exposes rifts that could dampen Democrats' Senate hopes

Graham Platner Suspends Democratic Senate Campaign in Maine After Allegation

Graham Platner, an oysterman and former Marine, suspended his campaign for the Democratic nomination in Maine’s U.S. Senate race on Wednesday night. The announcement came in an 11-minute video posted on social media, less than 48 hours after Politico published an interview with an ex-girlfriend who alleged that an intoxicated Platner entered her home uninvited in 2021 and sexually assaulted her. Platner has denied the allegation.

In the video, Platner said his campaign had competed against entrenched political structures and stated that those structures were now preventing his continued candidacy. He indicated he would not formally withdraw until assured that any replacement would be chosen through an open process.

Platner had defeated Maine Governor Janet Mills in the June Democratic primary, receiving 72 percent of the vote. He had been endorsed by Senators Bernie Sanders and Elizabeth Warren. The race against five-term Republican Senator Susan Collins is viewed by party strategists as a necessary gain if Democrats are to reach a Senate majority in the November midterms.

The sexual assault allegation was the most recent of several controversies reported about Platner since he entered the race in August 2025. Earlier reporting described offensive social media posts, a chest tattoo interpreted by some as having Nazi connotations, sexually explicit text messages sent after his 2023 marriage, and statements from former girlfriends describing threatening or toxic behavior. Platner continued to receive primary support despite those reports.

Within hours of the Politico article, Sanders, Warren, and other Democratic figures withdrew their endorsements. The Democratic Senatorial Campaign Committee stated it would no longer provide financial support. State party leaders began discussions about selecting a replacement before the July 27 deadline set by Maine election law.

On Wednesday night, the Maine Democratic Party said it would choose a new nominee at a convention within the next two weeks, with hundreds of delegates participating. The party had previously indicated it would seek public input rather than decide privately.

State party chair Devon Murphy-Anderson said the Platner campaign was attempting to manipulate the selection process, a claim denied by Platner’s representatives, who called for an open convention rather than selection of an establishment-backed candidate. Murphy-Anderson also described Platner’s supporters as a vital part of the party entitled to participate in the choice of a replacement.

University of Maine at Farmington politics professor James Melcher said many of those supporters would be reluctant to participate if the process appeared predetermined. Former state Senator Lynn Bromley, who supported Mills in the primary, said retaining the energy of Platner’s voters would be necessary for November but expressed concern that limited time remained to build support for a new candidate.

Platner had positioned himself as an advocate for universal healthcare, wealth taxes, and expanded low-cost housing, presenting a rural, working-class profile that appealed to some voters who had moved away from Democratic candidates in recent cycles. Polling before the allegation showed him holding a narrow lead over Collins.

Other candidates who have expressed interest in the nomination include former state Senate leader Troy Jackson, state epidemiologist Nirav Shah, and Secretary of State Shenna Bellows. Jackson finished third in the Democratic primary for governor. Shah placed second in that primary. Bellows was the party’s Senate nominee in 2014.

Melcher noted that some primary voters had supported Platner despite earlier controversies and said the current situation could allow the party to consolidate support if the replacement process is viewed as fair. He added that any new candidate would still face a difficult general election against Collins, who has won multiple terms despite trailing in some polls.

The Democratic primary had featured several outsider candidates emphasizing progressive policies and opposition to Republican positions. Platner’s campaign was among the most prominent examples of that pattern. With his withdrawal, attention has shifted to how the party will select and present its nominee in the remaining months before the election.