CHARLESTON, SC - JANUARY 20: Comedian Stephen Colbert hosts a rally with former Republican presidential candidate Herman Cain at the College of Charleston on January 20, 2012 in Charleston, South Carolina. Colbert held the event with Cain, titled 'Rock Me Like a Herman Cain South Cain-olina Primary Rally', as part of his pseudo-run for president of 'The United States of South Carolina.' (Photo by Richard Ellis/Getty Images)
SOUTH CAROLINA - Stephen Colbert's sister is planning a run for Congress, according to sources.
Reports say Elizabeth Colbert-Busch wants to get the Democratic nomination in South Carolina's First District. The seat is vacant because of Tim Scott's appointment to the Senate.
It's a traditionally right-leaning seat and several Republicans, including the state's former governor, Mark Sanford, are after it.
The Colberts are Charleston natives.