Sen. Lindsey Graham (R-S.C.) said Sunday that South Carolina Gov. Mark Sanford (R) should stay in office as he continues battling a political firestorm that has raged since he admitted having an extramarital affair.“In my view, changing the governor or impeachment has its own problems,— Graham said during an appearance on NBC’s “Meet the Press.—“I’d like to see Mark be able to finish out his term, but he’s got to prove to me and others he can be effective. That’s a story still ongoing,— Graham added. Graham’s comments come just days after GOP leaders in South Carolina called for Sanford to step down. A state ethics board is looking into Sanford’s use of state funds for travel related to his affair. Sanford, a former House Member, admitted June 24 that he had a long-running relationship with a woman from Argentina. “If he’s cleared by the [state] ethics committee he did nothing wrong, I think he can make it,— Graham said.