Tom Harkin won with 51.8% of the vote (634,166 votes), ahead of Jim Lightfoot with 46.7% (571,807 votes).
The margin between the first two candidates was 5.1 percentage points (62,359 votes). The party margin (Republican share minus Democratic share) was a Democratic lead of 5.1 points.
Compared with the previous comparable race in the same area, the party margin moved 47.5 points toward Democrats. The winning party changed.
1,224,054 votes were counted in this race, for 6 candidates or options.
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