COLUMBIA, S.C. (AP) — Mark Sanford, the former South Carolina congressman and governor whose political ascendency was stalled by a 2009 affair, wants to return to Congress — again. Just hours ahead of the deadline to do so, Sanford filed candidacy paperwork with state officials to run in the June 9 GOP primary for South Carolina’s 1st District seat, which he has held twice before. Sanford’s first political office was in the 1st District. An outsider with almost no name recognition, he navigated