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AIKEN, SC - DECEMBER 12: Republican presidential candidate Donald Trump speaks to the crowd at a town hall meeting December 12, 2015 in Aiken, South Carolina. The South Carolina Republican primary is scheduled for February 20, 2016.
AIKEN, SC - DECEMBER 12: Republican presidential candidate Donald Trump speaks to the crowd at a town hall meeting December 12, 2015 in Aiken, South Carolina. The South Carolina Republican primary is scheduled for February 20, 2016.

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    Trump: Cruz is a 'maniac'

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Trump: Cruz is a 'maniac'

Donald Trump's closest rival in the polls is Sen. Ted Cruz. Trump has resorted to branding his rival a "maniac." CNN's John Berman reports.

Trump: Cruz is a 'maniac'

Donald Trump's closest rival in the polls is Sen. Ted Cruz. Trump has resorted to branding his rival a "maniac." CNN's John Berman reports.