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Christine O'Donnell is defending her decision to walk off Piers Morgan's CNN show by saying he was asking sexually harassing questions -- including "sex questions that he would not ask of a man."

Keith Olbermann was MSNBC's most popular personality and single-handedly led its transformation to an outspoken, left-leaning cable news network in prime time. Despite that, he often seemed to be walking on a tightrope with his job.

Fox News' Bret Baier interrupted President Obama so many times during Wednesday's interview that Newsweek described the enounter as a "interrupt-a-thon."

Baier acknowledged his repeated interjections at the end of the interview, by interrupting the president once more to apologize. Baier told Obama "I apologize for interrupting you, sir.

John King is replacing Lou Dobbs on CNN. Jon Klein, CNN president, said Thursday that veteran reporter King will move into the 7 p.m. EST slot that's been vacated by Lou Dobbs. King will host a show about politics beginning early next year.