Susan Collins and Troy Jackson face off in close Maine Senate race

The Senate re-election campaign in Maine between Republican incumbent Susan Collins and Democratic challenger Troy Jackson has emerged as a crucial battleground in the struggle for control of Congress. Republicans currently hold 53 of the Senate's 100 seats, leaving Democrats needing a net gain of four seats to secure a majority. With 35 seats contested, Collins stands as the only Republican senator seeking re-election in a state that Donald Trump lost in 2024, making her seat a primary target for Democrats.

Susan Collins and Troy Jackson Vie in a Closely Divided Contest

Susan Collins, who first won election to the US Senate in 1996, is seeking her sixth term. Born in Caribou, Maine, Collins built a career rooted in a family lumber business and early government work under Representative Bill Cohen before serving in state regulatory roles. Known for a bipartisan voting record, she has cast more than 10,000 consecutive votes and serves on major Senate panels including Appropriations and Intelligence.

Troy Jackson grew up in Aroostook County as a fifth-generation logger, shaped by witnessing his father participate in a labor strike. He spent two decades in the Maine Legislature, including six years as Senate President, focusing on workers' rights, prescription drug costs, and universal school meals. Jackson entered the Senate race in July after the previous Democratic candidate withdrew, forcing his party to pivot their campaign strategy.

Debates and Campaign Encounters Highlight Divergent Visions

The candidates entered a series of four debates to reach voters across Maine. Their first debate, hosted by WGME on October 6, addressed abortion rights, healthcare, immigration enforcement, and foreign conflicts. Jackson criticized Collins for her support of Supreme Court appointments and argued for universal coverage under Medicare alongside the abolition of ICE. Collins defended her legislative seniority and bipartisan relationships, arguing that federal immigration agencies require reform rather than dismantling.

A second debate on October 8, hosted by WMTW, featured clashes over Supreme Court term limits, congressional term limits, and artificial intelligence. Jackson supported term limits for justices and ethics reforms, while Collins opposed the changes as conflicting with the judicial role. Outside the debate stage, former US president Barack Obama endorsed Jackson on October 8, releasing a video praising his background as a logger and his legislative record.

Meanwhile, Collins has faced scrutiny over a ProPublica report alleging office involvement in a pay-to-play scheme during her 2020 campaign—allegations her office rejected as false and which Collins termed a political hit job. Republican groups have countered by pouring millions into advertisements attacking Jackson over tax policies and highlighting his late entry into the race.

Voters in Maine will head to the polls to decide the outcome on November 3, 2026, with subsequent debates scheduled to continue through mid-October.