Democrat Troy Jackson defeats Susan Collins to win Maine US Senate seat in blow to Republicans

Democratic nominee toppled the five-term Republican incumbent in one of the most hard-fought midterm contests

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The Democrat Troy Jackson has won Maine’s US Senate race, toppling five-term Republican incumbent Susan Collins in one of the biggest upsets of the 2026 midterms.

Jackson, 58, unseated Collins – who has been in the Senate since 1997 – in a closely fought, and often rancorous, race characterized by mutual accusations of corruption and clashes over living costs in the predominantly rural state.