⭐ This is one of seven races that will determine control of the Senate! Get caught up ↓
Fifth-generation logger from Allagash and former Maine Senate President — the state's best-known labor Democrat.
Campaign website →U.S. senator since 1997, seeking a sixth term. Chairs the committee that controls federal spending.
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How each candidate handles money in politics.
Follow the money: Jackson takes no corporate PAC or billionaire money — his campaign runs on small-dollar and union support. Republican-aligned groups have spent or reserved ~$112M in this race, against ~$57M on the Democratic side. — AdImpact, July 2026