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Platner Holds 7 Point Lead over Collins in New Maine Senate Poll

The Pan Atlantic Research poll found Platner leading 48% to 41%, with women and independents backing him by wider margins.

  • On Wednesday, a new Pan Atlantic Research poll showed Democratic challenger Graham Platner leading incumbent Republican Senator Susan Collins 48% to 41% in Maine's Senate race, with 11% undecided.
  • This independent survey, conducted May 8-18, is the first since former Governor Janet Mills suspended her campaign in late April, effectively handing Platner the Democratic nomination.
  • Platner shows striking strength among key demographics: he leads women voters by 19 points and independent voters—who comprise roughly one-third of Maine's electorate—by 13 points.
  • Republican groups backing Collins have booked more than $80 million in advertising through Election Day, while total spending across the race has already exceeded $125 million.
  • Forecasters including the Cook Political Report and Sabato's Crystal Ball view the race as a toss-up, while NEWS CENTER Maine will host a CD2 debate Thursday night at 7 p.m.
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Bias Distribution

  • 37% of the sources lean Left, 36% of the sources lean Right
37% Left

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Spectrum Local News broke the news in United States on Wednesday, May 20, 2026.
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