Cook PVI
D+4
Last Margin
-9.2%
Seat Class
Class 2
Candidates
Republican
Incumbent
Susan Collins
US Senate
Maine's senior senator has survived five elections by being almost everything the modern Republican Party is not — and made a career out of that tension.
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Democrat
Graham Platner
US Senate
A combat veteran who farms oysters on the Maine coast is leading the Democratic primary — and polling ahead of Susan Collins in a race that's rewritten what an outsider candidacy looks like.
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