Former GOP presidential candidate Herman Cain waves at a rally the College of Charleston on January 20, 2012. Comedian Stephen 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." Richard Ellis/Getty Images hide caption

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Richard Ellis/Getty Images

Comedian Stephen Colbert, left, holds a rally with former GOP presidential candidate Herman Cain at the College of Charleston in South Carolina. Richard Ellis/Getty Images hide caption

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Richard Ellis/Getty Images