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David Costello

DChallenger
Candidate for Maine U.S. Senate Seat (Class II) · Election Jun 9, 2026
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Campaign finance data from FEC filings.
Detailed fundraising analytics available in Legis1

2026 Cycle

$154K
Total Raised
—
Individuals
—
PACs
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Small Donors
Source: FEC itemized contribution filings
Candidate-provided Public data (FEC) AllCiv / Legis1 coverage
Costello
for Senate
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Links
costelloforsenate.com
FEC: S4ME00113

Election History

Most recent general-election winners
2020
Susan Margaret CollinsR
417,645 votes
2014
Susan M. CollinsR
413,505 votes
2008
Susan M. CollinsR
444,300 votes
2002
Susan M. CollinsR
295,041 votes
1996
Susan M. CollinsR
298,422 votes
1990
William S. CohenR
319,167 votes
1984
William S. CohenR
404,414 votes
1978
William S. CohenR
212,294 votes