Herb Kohl won with 61.5% of the vote (1,563,238 votes), ahead of John Gillespie with 37.0% (940,744 votes).
The margin between the first two candidates was 24.5 percentage points (622,494 votes). The party margin (Republican share minus Democratic share) was a Democratic lead of 24.5 points.
Compared with the previous comparable race in the same area, the party margin moved 22.4 points toward Democrats.
2,540,083 votes were counted in this race, for 5 candidates or options.
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