(From left) Florida Sen. Marco Rubio, Donald Trump, Texas Sen. Ted Cruz and Ohio Gov. John Kasich before the start of the Republican presidential debate Thursday in Miami. Wilfredo Lee/AP hide caption

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Then-presidential candidate Rick Santorum speaks to reporters in the spin room Jan. 14 after the undercard portion of the Fox Business Network Republican presidential debate in South Carolina. Scott Olson/Getty Images hide caption

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Spectacle Of Spin: The Post-Debate Room Where The Truth Gets Dizzy

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Donald Trump (left) and Ted Cruz joke about Trump's comments that Cruz was a "maniac" and didn't have the right temperament to be president. They played nice then, but will they again? John Locher/AP hide caption

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An American soldier carrying equipment walks past an American flag at Incirlik Air Base in Adana, Turkey, as U.S. Air Force war planes are used against ISIS. Anadolu Agency/Getty Images hide caption

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Democratic presidential candidates Bernie Sanders, Hillary Clinton and Martin O'Malley stand on the stage prior to Saturday's Democratic primary presidential debate in Des Moines, Iowa. Alex Wong/Getty Images hide caption

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Hillary Clinton had to defend her views on foreign policy and President Obama's during Saturday's Democratic presidential debate, following the Paris attacks. Charlie Neibergall/AP hide caption

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Marco Rubio (center) was able to stand out even while being targeted by Jeb Bush (left), someone once described as a mentor. Donald Trump looks on. Mark J. Terrill/AP hide caption

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Republican presidential candidates, from left, Bobby Jindal, Rick Santorum, George Pataki, and Lindsey Graham take the stage during the CNBC Republican presidential debate at the University of Colorado on Wednesday. Mark J. Terrill/AP hide caption

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