Sanford wins South Carolina U.S. House seat
With 91 percent of the results in, Sanford had nearly 55 percent of the vote to 45 percent for Colbert Busch, who conceded the race.
Sanford regained the First Congressional District seat he held from 1995 to 2001 before serving two terms as governor, the latter of which was marred when he attempted to hide an affair by saying he was hiking the Appalachian Trail.
Colbert Busch, a businesswoman and sister of television political satirist Stephen Colbert, lost her first bid for office after leading Sanford in a poll two weeks before the special election.
She would have been the first Democrat to represent the district since the early 1980s .