Mike Rounds won with 65.7% of the vote (276,232 votes), ahead of Dan Ahlers with 34.3% (143,987 votes).
The margin between the first two candidates was 31.5 percentage points (132,245 votes). The party margin (Republican share minus Democratic share) was a Republican lead of 31.5 points.
Compared with the previous comparable race in the same area, the party margin moved 12.2 points toward Democrats.
420,219 votes were counted in this race, for 2 candidates or options.
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