Maine 2026 Poll: Platner Leads Gov. Mills, Democrats Lead Sen. Collins in Maine [View all]

The first Emerson College Polling survey of the 2026 U.S. Senate election finds oyster farmer Graham Platner leading Governor Janet Mills in the Democratic Primary election, 55% to 28%. Thirteen percent are undecided.

Graham Platner has a significant lead over Governor Mills, which is outside the poll’s margin of error,” Spencer Kimball, executive director of Emerson College Polling, said. “Male voters support Platner by a 41-point margin, 63% to 22%, while women support Platner by an 18-point margin, 50% to 32%.”

n hypothetical general election match-ups, both Platner and Mills have an edge over incumbent Republican Senator Susan Collins. Between Platner and Collins, 48% support Platner and 41% Collins; 6% support someone else and are undecided, respectively. In a matchup between Mills and Collins, 46% support Mills, 43% Collins, 8% someone else, and 3% are undecided.

https://emersoncollegepolling.com/maine-2026-poll-platner-leads-gov-mills-democrats-lead-sen-collins-in-maine/