Susan M. Collins won with 58.4% of the vote (295,041 votes), ahead of Chellie Pingree with 41.6% (209,858 votes).
The margin between the first two candidates was 16.9 percentage points (85,183 votes). The party margin (Republican share minus Democratic share) was a Republican lead of 16.9 points.
Compared with the previous comparable race in the same area, the party margin moved 21.0 points toward Democrats.
504,899 votes were counted in this race, for 2 candidates or options.
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