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Republican Presidential hopeful Marco Rubio smiles after the CNBC Republican Presidential Debate, October 28, 2015 at the Coors Event Center at the University of Colorado in Boulder, Colorado.
Republican Presidential hopeful Marco Rubio smiles after the CNBC Republican Presidential Debate, October 28, 2015 at the Coors Event Center at the University of Colorado in Boulder, Colorado.

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    Marco Rubio memorized his stump speech. Big time.

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Marco Rubio memorized his stump speech. Big time.

Republican presidential candidate Sen. Marco Rubio has favorite lines he's returned to on the campaign trail.

Marco Rubio memorized his stump speech. Big time.

Republican presidential candidate Sen. Marco Rubio has favorite lines he's returned to on the campaign trail.