Republican Sen. Susan Collins and Democratic nominee Troy Jackson are competing for a U.S. Senate seat in Maine, with both campaigns focusing on women and independent voters. The race follows the withdrawal of former Democratic candidate Graham Platner, who suspended his campaign in July after an allegation of sexual assault.
The contest is considered a significant opportunity for Democrats to gain a Senate seat, as Collins is the only Republican senator seeking reelection in a state won by Donald Trump’s opponent in 2024. In the 2020 election, women accounted for approximately 60% of Maine’s turnout; while they supported Joe Biden by 23 points, they supported Collins by three points.
Campaign messaging has focused on abortion rights and personal conduct. Jackson, a former state senator, has faced criticism for past shouting matches with colleagues, for which he has apologized. Collins has faced criticism regarding her 2018 vote to confirm Supreme Court Justice Brett Kavanaugh. Her campaign maintains her views on abortion rights are consistent, while Jackson stated his own views have shifted from opposing abortion to supporting expanded access.
Voters will notice the direct effects of this race through a high volume of campaign advertising, including millions of dollars already spent by Republican groups to link Jackson to his predecessor's scandal. In their daily lives, Maine residents report that economic concerns are their primary motivation, specifically regarding the cost of housing, rising utility bills, the expense of raising families, and access to health care. These financial pressures may influence whether families choose to remain in the state or seek lower costs elsewhere.
The race also serves as a test case for how voters respond to shifting positions on abortion rights following the 2022 Supreme Court decision that eliminated constitutional protections for the procedure. Both candidates are positioning themselves as advocates for women, though they offer different records on judicial confirmations and legislative access. The final decision rests with Maine voters on Election Day in November 2026.
Democrats nominated Jackson on July 25, 2026, following Platner’s departure from the race. Republicans have utilized data from AdImpact to track and deploy advertising spending against the new nominee as the midterm cycle enters its final months. Collins, who has won multiple terms while the state favored Democratic presidential candidates, is attempting to maintain her coalition of independent and female supporters.