Stephen Colbert delivers the 2013 Valedictory Address during the University of Virginia's 2013 Valedictory Exercises at John Paul Jones Arena, Saturday, May 18, 2013, in Charlottesville, Va.
Priya D. Vithani, chair of the graduation committee for the class of 2013, laughs as Stephen Colbert, center, applauds at the wrong time during the University of Virginia's 2013 Valedictory Exercises at John Paul Jones Arena, Saturday, May 18, 2013, in Charlottesville, Va.
CHARLESTON, SC - MAY 7: Elizabeth Colbert Busch leaves after casting her vote in a special election runoff with former South Carolina Gov. Mark Sanford for a seat in the 1st Congressional District May 7, 2013 in Charleston, South Carolina. Voters are deciding between Sanford, a Republican seeking a political comeback after an extramarital affair and Busch, a Democratic businesswoman and the sister of comedian of Stephen Colbert.
CHARLESTON, SC - MAY 7: Former South Carolina Gov. Mark Sanford (C) is surrounded by media as he waits to enter the polling place to cast his vote in the special election runoff with Elizabeth Colbert Busch for a seat in the 1st Congressional District May 7, 2013 in Charleston, South Carolina. Voters are deciding between Sanford, a Republican seeking a political comeback after an extramarital affair and Busch, a Democratic businesswoman and the sister of comedian of Stephen Colbert.
Former South Carolina Gov. Mark Sanford speaks with a vendor at the Mount Pleasant Farmers Market in Mount Pleasant, S.C., Tuesday, May 7, 2013. He faces Elizabeth Colbert Busch, the sister of political satirist Stephen Colbert, and Green Party candidate Eugene Platt, in Tuesday's balloting.
Former South Carolina Gov. Mark Sanford, center, speaks with Suzanne McCord, of Mount Pleasant, S.C., at the Mount Pleasant Farmers Market in Mount Pleasant, Tuesday, May 7, 2013. Sanford, a Republican, and Elizabeth Colbert Busch, a Democrat and sister of political satirist Stephen Colbert, are to face off for the 1st Congressional District seat, that was vacated when Tim Scott was appointed to the U.S. Senate. Green Party candidate Eugene Platt also is on the ballot.