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PASADENA, CA - JANUARY 16:  Executive producer/host Donald Trump speaks onstage during the 'The Celebrity Apprentice' panel discussion at the NBC/Universal portion of the 2015 Winter TCA Tour at the Langham Hotel on January 16, 2015 in Pasadena, California.  (Photo by Frederick M. Brown/Getty Images)
PASADENA, CA - JANUARY 16:  Executive producer/host Donald Trump speaks onstage during the 'The Celebrity Apprentice' panel discussion at the NBC/Universal portion of the 2015 Winter TCA Tour at the Langham Hotel on January 16, 2015 in Pasadena, California.  (Photo by Frederick M. Brown/Getty Images)

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Donald Trump reacts to news he is leading in Iowa according to a new CNN/ORC poll, and also responds to attacks from Sen. Rand Paul.