Platner Wins Maine Democratic Senate Primary Amid Allegations

Graham Platner won the Maine Democratic primary for the U.S. Senate on Tuesday, securing 72% of the vote and setting up a November contest against incumbent Republican Sen. Susan Collins. Platner, a 41-year-old Marine veteran, is running in a race seen as pivotal for Democrats as they try to win control of the Senate. Republicans currently hold a 53-47 majority.

Platner defeated Maine Gov. Janet Mills, who suspended her campaign in April but remained on the ballot, as well as David Costello. The general election will decide whether Collins, a longtime fixture in Maine politics, wins a sixth six-year term.

Platner’s campaign drew national attention because of allegations about his past conduct that surfaced during the primary. He has denied the most serious claims.

Misconduct claims and Platner’s response

Reports said Platner exchanged sexually explicit messages with several women while he was married. A former partner also alleged that more than a decade ago he twisted her arm during an argument and held her in a room against her will. Platner has categorically denied that allegation.

Addressing supporters after his win, Platner argued that people can change and framed his candidacy as part of a broader political movement. He also spoke about mistakes in his past, saying: “Redemption is not just some simple or easy destination; it’s a journey. I’ve made mistakes in my life, mistakes I regret, that I live with, that I continue to learn from.”

General election stakes in a closely watched Senate map

Platner will now turn to the general election campaign against Collins, one of the Senate’s most prominent Republicans. Democrats have highlighted the Maine race as a key opportunity in their push to flip the chamber.

With the primary decided, attention will shift to fundraising, voter turnout, and how both campaigns address the allegations and broader national politics in the months before November.