Susan M. Collins won with 61.3% of the vote (444,300 votes), ahead of Thomas H. Allen with 38.6% (279,510 votes).
The margin between the first two candidates was 22.7 percentage points (164,790 votes). The party margin (Republican share minus Democratic share) was a Republican lead of 22.7 points.
Compared with the previous comparable race in the same area, the party margin moved 30.9 points toward Democrats.
724,430 votes were counted in this race, for 2 candidates or options.
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