"This was a huge mistake, me coming on here," O'Reilly says at one point. Later, O'Reilly kids that he could be elected mayor of San Francisco, and, after O'Reilly says "this is all an act," Colbert tells the FOX host, "If you're an act, then what am I?"
Last night, Stephen Colbert and Bill O'Reilly traded interviews. You can view Colbert on the O'Reilly Factor here.
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