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Former South Carolina Gov. Mark Sanford addresses supporters in Charleston, S.C., on Tuesday, March 19, 2013, after advancing to the GOP primary runoff in a race for a vacant South Carolina congressional seat. Sanford, trying to make a political comeback, was one of 16 Republicans running in Tuesday's primary. (AP Photo/Bruce Smith)

Mark Sanford wins primary runoff

Former South Carolina Gov. Mark Sanford won the GOP primary runoff for a U.S. House seat on Apr. 2, taking a step

toward reviving a political career that was derailed by an extramarital

affair while he was governor.