Former South Carolina Gov. Mark Sanford signs in before voting in Charleston, S.C., on Tuesday, April 2, 2013. Sanford is facing former Charleston County councilman Curtis Bostic in the Republican ... more 
Former South Carolina Gov. Mark Sanford signs in before voting in Charleston, S.C., on Tuesday, April 2, 2013. Sanford is facing former Charleston County councilman Curtis Bostic in the Republican runoff for South Carolina's vacant 1st District congressional seat. (AP Photo/Bruce Smith) less 
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Associated Press | Photo By Bruce Smith
Tue, Apr 2, 2013 2:48 PM EDT