Greg Gianforte won with 58.9% of the vote (354,491 votes), ahead of Ryan Busse with 38.6% (232,604 votes).
The margin between the first two candidates was 20.2 percentage points (121,887 votes). The party margin (Republican share minus Democratic share) was a Republican lead of 20.2 points.
Compared with the previous comparable race in the same area, the party margin moved 7.4 points toward Republicans.
602,283 votes were counted in this race, for 3 candidates or options.
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