Maine Senate
Primary: June 9, 2026
Primary Contests
Democratic Primary
Graham Platner
$16.3M raised
A
Republican Primary
Susan Collins
Inc
$12.2M raised
F
Other Candidates
Phillip Rench
Primary Opponents
David Costello
$150K raised
N/A
2020 Senate Results
Collins, Susan Margaret
vs51.0%
Gideon, Sara I.
42.4%
D+8.6
Candidate Details
Graham Platner
Democratic
Grade: A
2026 Fundraising$16.3M
Individuals
PACs
Susan Collins
Republican
Grade: F
2026 Fundraising$12.2M
Individuals
PACs
David Costello
Democratic
Grade: N/A
2026 Fundraising$150K
Individuals
Self
PR
Phillip Rench
IND
Grade: N/A
2026 Fundraising$55K
Individuals
Self