In a primary election that has gripped political observers nationwide, Graham Platner, an oyster farmer and Marine combat veteran from Hancock County, clinched the Democratic nomination for the U.S. Senate in Maine on June 9, 2026. The Associated Press called the race just after 9 p.m., confirming Platner’s landslide win with nearly 75% of the vote counted early in the night, according to the AP. His victory sets up a high-stakes November showdown against incumbent Republican Senator Susan Collins, who is seeking her sixth term and was unchallenged in her own primary.
Platner’s path to the nomination was anything but smooth. His campaign was dogged by persistent controversy, including a tattoo that resembled a Nazi symbol—something Platner has since covered up and apologized for, claiming he was unaware of its meaning at the time. As reported by BBC, even members of his own campaign raised concerns about potential antisemitism. Additional scandals surfaced, including sexually explicit text messages sent to women while Platner was married, and a series of deleted Reddit posts containing offensive remarks about police and rural white Americans. Platner has disavowed the comments and denied knowledge or intent behind the tattoo, telling MS NOW, “I vehemently deny anything alleging physicality and anything alleging that I knew what my tattoo was.”
Despite these hurdles, Platner’s progressive message resonated with voters. According to ABC News, Platner’s campaign focused on addressing wealth inequality and advocating for working Mainers. He was endorsed early by prominent progressives like Vermont Senator Bernie Sanders and Massachusetts Senator Elizabeth Warren. As the campaign unfolded, he also picked up support from other national figures including California Representative Ro Khanna and Minnesota Senator Tina Smith. “Graham Platner is gonna win because he has connected with Mainers on what they really care about: How this country can work for them, not just the wealthy,” Smith posted on X this week, as reported by Axios.
Platner’s main competitor, outgoing Governor Janet Mills, had been the early favorite of Democratic leadership. However, Mills suspended her campaign in late April, citing limited financial resources and lagging poll numbers. “I am grateful to Maine people and incredibly proud of what we have accomplished together. I will continue to fight with everything I have to improve the lives and livelihoods of Maine people,” Mills said in a statement after her exit. Her departure cleared the way for Platner to consolidate support within the party, and he went on to thank Mills for her service during his victory speech: “We are eternally grateful,” Platner said, according to local reports.
Platner’s victory speech struck a defiant tone, promising to fight for all Mainers and vowing not to let the state down. “Until recently, I thought that harbormaster would be the height of my political career,” he told supporters. “It now appears that things have changed.” He acknowledged his checkered past, telling a rally in Bar Harbor, “Every single piece of my past and journey is being dug up, litigated and weaponized.” Yet, he insisted he was determined to earn the trust of those who did not vote for him, including Mills and Costello supporters. “It is my job to earn your trust, faith and support. And I will spend every day of this campaign—and if I have the privilege, every day in the United States Senate—doing exactly that.”
For many Democrats, Platner’s nomination is both a cause for hope and anxiety. The party sees Maine as one of the most competitive Senate races in the country—a rare opportunity to flip a seat in a state with a Democratic tilt, as highlighted by Decision Desk HQ. Yet, some strategists worry that Platner’s baggage could imperil their chances. As Axios reported, the “drip-drip-drip” of negative stories has led party insiders to fret that Platner may be too damaged to unseat Collins, who has built a reputation for bipartisanship and legislative accomplishment. The Collins campaign was quick to tout her record, noting that she has been ranked the most bipartisan senator in nine of the last eleven indexes by the nonpartisan Georgetown Lugar Center. “Senator Collins’ Chairmanship of the Senate Appropriations Committee is a once-in-a-century opportunity for the state of Maine. Since 2021, Senator Collins has secured nearly $1.5 billion for over 650 projects across all of Maine’s 16 counties,” her campaign stated.
Republicans, meanwhile, wasted no time in going on the offensive. A pro-Collins super PAC began airing ads attacking Platner’s old Reddit posts, and Republican National Committee Chairman Joe Gruters issued a blistering statement labeling Platner “the most toxic candidate of the cycle,” accusing him of racism, sexism, and extremism. Platner, for his part, has rejected these attacks and doubled down on his campaign’s populist themes, declaring in his victory speech, “Susan Collins is getting rich while we’re getting screwed.”
Despite the controversies, polling ahead of the primary suggested Platner could be competitive in the general election. A UMass Lowell/YouGov poll from late May (before the latest round of scandals) had Platner leading Collins 48% to 43%, with 6% undecided. A University of New Hampshire poll showed an even wider 9-point lead for Platner. However, analysts like Nate Silver cautioned that internal polling from Platner’s campaign, which showed a 4-point advantage, might be overly optimistic.
Platner’s campaign has attracted large crowds and viral support online, with his promise to “topple the oligarchy” and his openness about his struggles with PTSD from military service and the stresses of running a small business. Voters, according to BBC, have responded to his down-to-earth style, even as his detractors question his fitness for office. For some, Platner’s rise signals a shift in Democratic politics—a willingness among voters to look past personal scandal in favor of candidates who promise bold change. As Axios put it, the party may be “entering a new era” of tolerance for non-traditional nominees, a trend arguably accelerated by the norm-shattering presidency of Donald Trump.
Senator Collins, for her part, remains a formidable opponent. Having served nearly 30 years in the Senate, she has at times clashed with Trump—most notably voting to convict him in his second impeachment trial—but has since moved closer to the party’s mainstream. Her campaign emphasized her ability to deliver bipartisan results and transformative investments for Maine, highlighting her role as architect of the PPP program, credited with saving millions of jobs nationwide.
As both parties gear up for a bruising general election campaign, the stakes couldn’t be higher. The outcome in Maine could determine control of the Senate and, by extension, shape the direction of national policy for the remainder of Donald Trump’s presidential term. With Platner and Collins offering starkly different visions for the state and the country, voters in Maine will soon decide which path they prefer.
The next five months promise plenty of drama as Platner and Collins battle for Maine’s Senate seat—a contest that, for better or worse, may come to define the 2026 midterms.