Sen. Susan Collins (R-ME) maintains a narrow lead over Democrat Graham Platner in the 2026 Maine Senate race, according to a Fox News poll released Tuesday. The survey suggests the contest remains tight as both candidates campaign in a state known for split-ticket voting.
The outcome could shift the balance of power in the U.S. Senate, where Republicans currently hold a slim majority. A Collins loss would open a path for Democrats to flip a seat in a state that has backed Democratic presidential candidates in recent cycles.
Collins, a moderate Republican who has won re-election by distancing herself from party orthodoxy, faces a challenger who has positioned himself as a progressive alternative. The polling margin falls within the survey's error range, leaving both camps with work ahead.
Public opinion in Maine has historically favored incumbents with cross-party appeal, but rising partisan polarization may test that trend. Voter turnout in Portland and other Democratic strongholds will be critical for Platner's chances.
Counter-argument: The poll's tight margin means Platner could close the gap with stronger turnout or if national headwinds shift against Republicans. Collins's moderate record may also alienate some conservative base voters, potentially suppressing GOP enthusiasm.