Jon Tester won with 48.6% of the vote (236,123 votes), ahead of Denny Rehberg with 44.9% (218,051 votes).
The margin between the first two candidates was 3.7 percentage points (18,072 votes). The party margin (Republican share minus Democratic share) was a Democratic lead of 3.7 points.
Compared with the previous comparable race in the same area, the party margin moved 42.1 points toward Republicans.
486,066 votes were counted in this race, for 3 candidates or options.
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