Dirk Kempthorne won with 56.5% of the vote (270,468 votes), ahead of Richard H. Stallings with 43.5% (208,036 votes).
The margin between the first two candidates was 13.0 percentage points (62,432 votes). The party margin (Republican share minus Democratic share) was a Republican lead of 13.0 points.
Compared with the previous comparable race in the same area, the party margin moved 9.5 points toward Democrats.
478,504 votes were counted in this race, for 2 candidates or options.
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