Donald Trump: I've been 'a little childish'

Donald Trump admitted Monday that his rhetoric on the campaign trail may not always sound entirely presidential. --"Probably is a little childish," Trump said in an interview with CNN's Erin Burnett at Trump Tower in New York. "But you know what? This is a campaign." --The billionaire businessman defended his style, saying the attacks he's unleashed on his rivals in the Republican presidential field have largely been reactive.

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(Hat tip: KimR)