Troy Jackson is set to accept the Democratic Party's nomination for the U.S. Senate on Saturday, bringing to a close a frenetic, two-week effort to name a replacement for Graham Platner on the November ballot. Platner withdrew on July 10 after facing sexual assault allegations that he denies. Jackson became the presumptive nominee after a decisive showing in the state party's delegate selection process last weekend.
Jackson, described as a fifth-generation logger and a former Republican from northern Maine, consolidated support quickly when his backers dominated delegate selection. Following that outcome, his principal opponents suspended their campaigns, leaving Jackson and Saundra Pelletier, the wealthy chief executive of a biopharmaceutical company, as the only remaining candidates in what had expanded to a 13-person field.
The campaign reported a pronounced fundraising spike in the days after Jackson's emergence as the front-runner. Donations from nearly 25,000 supporters produced more than $600,000 between Sunday and Wednesday, according to the campaign. By Wednesday, the campaign said it had surpassed $1 million raised since Jackson entered the truncated race earlier this month.
Delegates will formalize the nomination at a party convention in Bangor, where roughly 600 delegates are scheduled to vote. Jackson's anticipated acceptance will launch a 101-day campaign period leading up to the general election against incumbent Republican Sen. Susan Collins.
Jackson's entry sets up a high-profile contest versus Collins, a five-term senator who has used her seniority and her position as chair of the Senate Appropriations Committee to direct federal resources to Maine. Collins is the only Republican senator facing reelection in a state that Democratic vice presidential nominee Kamala Harris carried in 2024, making the seat a top pickup target for Democrats aiming to regain control of the Senate for the last two years of President Donald Trump's administration.
Control of the Senate hangs in a narrow margin - Republicans hold a 53-47 majority - and both parties view winning Maine as an important element of their midterm strategies. A Republican victory would reduce the number of seats Democrats would need to regain a majority, while a Democratic win in Maine would help the party's effort to take control.
Polling released this week by the University of New Hampshire showed Jackson with a narrow lead over Collins among likely general election voters. Collins, 73, maintains a substantial campaign fund with roughly $11 million on hand. She was last reelected in 2020, winning by nearly nine percentage points even as Maine voters favored Democrat Joe Biden over Donald Trump by a similar margin. The reporting also notes that Harris, herself a replacement nominee after Biden withdrew previously, carried Maine by about seven percentage points.
Observers say several issues are likely to steer the general election debate. Affordability, the politics of former President Donald Trump and immigration are expected to be central topics. Jackson has called for abolishing U.S. Immigration and Customs Enforcement - a position highlighted amid scrutiny of the agency after several high-profile incidents that resulted in deaths this year, including the killing of a 26-year-old Colombian man in Biddeford, Maine, on July 13.
Senator Collins voted in favor of $70 billion in immigration enforcement funding last month, funding that did not include reforms to ICE. At the same time, she has publicly called for a pause in the agency's traffic stops. Former President Trump has argued such stops should continue, characterizing them as among the agency's most important and effective tools.
Social issues are also expected to surface during the campaign. Jackson now supports abortion rights and same-sex marriage but maintained the opposite positions during his state legislative career until his second Senate term in 2016. That record drew criticism and was highlighted in advertising during his unsuccessful run in Maine's gubernatorial primary earlier this year.
Republican strategists have suggested Jackson's prior anti-abortion votes may blunt the effect of Collins' controversial vote to confirm Brett Kavanaugh to the Supreme Court, a confirmation that contributed to the overturning of federal abortion protections. It remains unclear whether Republicans will target the Collins-Jackson matchup with advertising similar to what was used against Jackson in the gubernatorial primary.
With the nomination expected to be formally confirmed by delegates in Bangor on Saturday, the campaign will shift immediately into a compressed general election schedule. Both campaigns will have just over 100 days to mobilize voters, raise additional funds and define their messages in a race that could carry significant implications for control of the U.S. Senate.