Former South Carolina Gov. Mark Sanford, center, arrives during a campaign stop at the Charleston Maritime Center on Tuesday, April 30, 2013 in Charleston, S.C. (AP Photo/Rainier Ehrhardt)

Associated Press
Former South Carolina Gov. Mark Sanford, center, arrives during a campaign stop at the Charleston Maritime Center on Tuesday, April 30, 2013 in Charleston, S.C. (AP Photo/Rainier Ehrhardt)
Former South Carolina Gov. Mark Sanford, center, arrives during a campaign stop at the Charleston Maritime Center on Tuesday, April 30, 2013 in Charleston, S.C. (AP Photo/Rainier Ehrhardt)
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