Campaign signs line the curb outside a polling place in Mount Pleasant, S.C., on Tuesday, March 19, 2013. Former South Carolina Gov. Mark Sanford, trying to make a political comeback, is one of 16 ... more 
Campaign signs line the curb outside a polling place in Mount Pleasant, S.C., on Tuesday, March 19, 2013. Former South Carolina Gov. Mark Sanford, trying to make a political comeback, is one of 16 Republicans running Tuesday in the GOP primary in a special election to fill South Carolina's vacant 1st Congressional District seat. (AP Photo/Bruce Smith). less 
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Associated Press | Photo By Bruce Smith
Tue, Mar 19, 2013 2:28 PM EDT