In the first of several debates, Republican Senator Susan Collins and her Democratic challenger, Troy Jackson, acknowledged that the cost of living is high for residents of Maine, but they disagreed on the causes and solutions. Collins stated, "If you look at the policies that have driven up the cost of living in Maine, you have to look at Augusta," referring to the state capital where Jackson previously served as Senate president. Jackson countered, saying, "What we’re seeing right now with affordability issues is because of Sen. Collins not being willing to stand up to Donald Trump."
The debate covered a range of topics including housing, health care, and an FBI investigation involving Collins. Collins, who is running for her sixth term, highlighted her independence and her role as chair of the Senate Appropriations Committee. Jackson was selected as the Democratic nominee after Graham Platner withdrew from the race following allegations of rape.
The Cook Political Report has classified the race as a toss-up, noting Collins' history of winning elections in Maine despite national Republican trends. Political committees linked to Trump’s MAGA Inc. super PAC have not disclosed spending in the Maine Senate race. Collins remarked, "I don’t think that President Trump is going to come to Maine. I’m not exactly his favorite senator."
The candidates are scheduled to meet three more times in the coming weeks. A contentious moment in the debate involved a ProPublica report regarding an FBI investigation into Collins related to allegations of a bribery scheme with a defense contractor. No charges were filed against Collins or her associates. Jackson used this report to argue that Collins is not focused on affordability, stating, "[The Trump] administration dismantled the investigation. Now she votes for Donald Trump 96% of the time. I don’t owe Trump. I don’t owe the billionaires nothing."
Collins dismissed the accusations as "completely false" and "very offensive," asserting her independence in Congress by stating, "I voted against my party more than any other senator on either side of the aisle." The candidates also debated Trump’s One Big Beautiful Bill Act, which Collins did not vote for, although Jackson pointed out her support for an earlier procedural motion to advance it. Collins defended her actions by citing the inclusion of the $50 billion Rural Health Transformation Program, which she deemed important for Maine. Jackson criticized Collins, calling her "an arsonist who helped set the fire, and then she wants credit for bringing a cup of water to put it out."