Barack Obama won with 70.0% of the vote (3,597,456 votes), ahead of Alan Keyes with 27.1% (1,390,690 votes).
The margin between the first two candidates was 42.9 percentage points (2,206,766 votes). The party margin (Republican share minus Democratic share) was a Democratic lead of 42.9 points.
Compared with the previous comparable race in the same area, the party margin moved 20.6 points toward Democrats.
5,141,520 votes were counted in this race, for 4 candidates or options.
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