2008Final results
2008 election for U.S. Senate in Maine
U.S. Senate · Maine
Susan Collins (R) won with 61.3% of the vote, defeating Thomas Allen (D) by 22.7 points.
Susan CollinsRepublican · winner
61.3%444,300
Thomas AllenDemocrat
38.6%279,510
724,430 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2008
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Thomas AllenSusan Collins
$6M
Raised by the campaign
$7.6M
$6.5M
Spent by the campaign
$7.8M
$38.2K
Cash on hand
$263.7K
Campaign money: FEC, through Dec 31, 2008.
Source: FEC campaign filingsUpdated Dec 31, 2008