Graham Platner projected to win Maine Democratic Senate primary, setting up race against GOP Sen. Susan Collins
Updated on: June 9, 2026 / 10:11 PM EDT / CBS News
TL;DR
- Graham Platner won the Democratic primary for the Maine Senate seat, with Sen. Susan Collins running unopposed in the Republican primary.
- The race is considered pivotal for Democrats aiming to gain control of the Senate.
- Platner, a progressive-backed candidate, faces allegations of sending sexually explicit texts and exhibiting "unsettling" behavior towards women, which he denies.
- Platner has previously apologized for past internet comments and covering a tattoo recognized as a Nazi symbol.
- Despite controversies, Platner secured the nomination after Maine Gov. Janet Mills withdrew from the race.
- Sen. Bernie Sanders and Rep. Ro Khanna have defended Platner, urging focus on policy issues.
- Platner's former political director, Genevieve McDonald, suggested he could withdraw, allowing Democrats to select a new nominee.
- Collins is the only Republican seeking reelection in a state that voted for Vice President Kamala Harris in 2024.
- The Cook Political Report rates the Maine Senate race as a toss-up.