UPDATE: South Carolina Gov. Mark Sanford admits to affair

Wednesday, June 24, 2009 | 5:39 p.m. CDT; updated 6:40 p.m. CDT, Wednesday, June 24, 2009

COLUMBIA, S.C. — After going AWOL for seven days, South Carolina Gov. Mark Sanford admitted Wednesday that he had secretly flown to Argentina to visit a woman with whom he was having an affair. Wiping away tears, he apologized to his wife and four sons and said he will resign as head of the Republican Governors Association.