Republican presidential candidate, Herman Cain campaigned Wednesday in Dayton, Ohio. He told a Fox News interviewer he would decide in the next week whether to stay in the GOP race. Al Behrman/AP hide caption

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Hillary Clinton's "inevitability" became less certain after a debate in Philadelphia at Drexel University in October 2007. William Thomas Cain/Getty Images hide caption

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Republican Presidential candidate Herman Cain greets supporters at a campaign rally outside of Wings Plus on Wednesday in Coral Springs, Fla. Joe Raedle/Getty Images hide caption

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Republican presidential candidates jockeyed for airtime when they met for their first prime time TV debate on Saturday night in South Carolina. Alex Wong/Getty Images hide caption

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Cain accuser and longtime government employee Karen Kraushaar once worked as a spokesperson for the Immigration and Naturalization Service. She offered a statement after meeting with the Miami family of Elian Gonzalez in March of 2000. Miami Herald/Getty Images hide caption

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