Maine Democratic Senate Primary: Ex-Campaign Director Drops Bombshell Against Platner Hours Before Polls Open

Picture this: it's the night before a major political primary, and the person who used to run your campaign drops a public op-ed saying you shouldn't be a senator. That's exactly what happened to Graham Platner, Maine's leading Democratic Senate candidate, just hours before polls opened on Tuesday, June 9.

So who is Graham Platner? He's a 41-year-old Marine and Army veteran turned oyster farmer who burst onto the political scene last year as a scrappy outsider. He ran on a decidedly populist platform — tax the billionaires, lower costs for working Mainers, challenge the political establishment. He quickly became the frontrunner to win the Democratic nomination and take on longtime Republican Sen. Susan Collins in one of the most closely watched Senate races in the country. Bernie Sanders endorsed him. Elizabeth Warren backed him. Small-dollar donations poured in.

But here's where it gets messy. Genevieve McDonald, a former Maine state representative who served as Platner's campaign director from August to October 2025, published a bombshell op-ed in The Washington Post the night before the primary. Her headline message: Platner "is not someone who would be good for Maine or for the country." She said she left the campaign after just two months and described what she called a "pattern of dishonest behavior that is impossible to ignore."

McDonald was reacting to a growing pile-up of controversies that have dogged Platner throughout his campaign. The list is long: a tattoo on his chest that resembled a Nazi SS symbol (which he says he got while drunk in 2007 with fellow Marines and claims he didn't know its significance — he has since covered it up); old Reddit posts where he called rural white Americans "racist" and "stupid" and made anti-LGBTQ+ comments; allegations from former girlfriends reported by The New York Times that he could be physically rough and "does not respect women"; and a Wall Street Journal report that his own wife found and disclosed sexually explicit text messages he'd sent to multiple women early in their marriage. Platner has denied the physical abuse claims, acknowledged a "dark period" in his life involving PTSD and alcohol, and said some allegations are politically motivated.

Despite all of it, Platner won the primary Tuesday night — and by a significant margin. Gov. Janet Mills, his only serious challenger, had already suspended her campaign in April due to a lack of funds, though her name remained on the ballot because it was printed before she dropped out. The only other active candidate, David Costello, was polling in the single digits.

In his victory speech, Platner didn't dodge the chaos: "I've made mistakes in my life — mistakes that I regret, that I live with and that I continue to learn from." He then pivoted hard to the general election, going after Collins as a tool of corporate money and the "billionaire class."

So why does this matter to you? If Senate control is something you care about — and it affects everything from healthcare legislation to tax policy to judicial appointments — this race is huge. Maine is one of Democrats' best shots at flipping a seat. But the party is walking into November with a candidate carrying serious baggage, a divided base, and an opponent in Collins who has beaten Democrats in Maine before, even in tough years. The question isn't just whether Platner can beat Collins — it's whether the controversies will stick harder in a general election, when the entire country is watching.