Republican presidential candidates, from left, John Kasich, Mike Huckabee, Jeb Bush, Marco Rubio, Donald Trump, Ben Carson, Carly Fiorina, Ted Cruz, Chris Christie, and Rand Paul take the stage during the Oct. 28 CNBC Republican presidential debate at the University of Colorado in Boulder, Colo.
Republican presidential candidates, from left, John Kasich, Mike Huckabee, Jeb Bush, Marco Rubio, Donald Trump, Ben Carson, Carly Fiorina, Ted Cruz, Chris Christie, and Rand Paul take the stage during the Oct. 28 CNBC Republican presidential debate at the University of Colorado in Boulder, Colo. Mark J. Terrill AP
Republican presidential candidates, from left, John Kasich, Mike Huckabee, Jeb Bush, Marco Rubio, Donald Trump, Ben Carson, Carly Fiorina, Ted Cruz, Chris Christie, and Rand Paul take the stage during the Oct. 28 CNBC Republican presidential debate at the University of Colorado in Boulder, Colo. Mark J. Terrill AP

In debates, candidates have not yet told how they would govern

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