Tim Johnson won with 49.6% of the vote (167,481 votes), ahead of John Thune with 49.5% (166,949 votes).
The margin between the first two candidates was 0.2 percentage points (532 votes). The party margin (Republican share minus Democratic share) was a Democratic lead of 0.2 points.
Compared with the previous comparable race in the same area, the party margin moved 25.6 points toward Republicans.
337,501 votes were counted in this race, for 3 candidates or options.
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