Image: New York Times

Maine U.S. Senate Election 2026: Latest Polls

16 January, 2026.USA.1 sources

Key Takeaways

June 9 is the Maine U.S. Senate primary date.
Polls reflect the first round of ranked-choice voting.
Collins is seeking re-election against Gov. Janet Mills and Graham Platner.

Candidates and stakes

Senator Susan Collins, the last Republican remaining in New England’s congressional delegation, isrunning for re-election, testing whether a G.O.P. moderate can still hold ground in blue territory.

“The primary will be held on June 9”

New York Times

Gov. Janet Mills and the progressive newcomer Graham Platner are challenging Collins, a five-term incumbent.

New York Times

As the only Republican senator representing a state that voted against President Trump in all three of his races — Kamala Harris carried Maine by just under seven percentage points — Collins is reliant on cross-party voters, a group that has largely disappeared from national politics.