Fox Business And The Wall Street Journal Host Republican Primary Debate [Getty Images]

2016 Republican presidential candidates, from left, Donald Trump, president and chief executive of Trump Organization Inc., Ben Carson, a retired neurosurgeon, and Senator Ted Cruz, a Republican from Texas, participate in a presidential candidate debate in Milwaukee, Wisconsin, U.S., on Tuesday, Nov. 10, 2015. The fourth Republican debate, hosted by Fox Business Network and the Wall Street Journal, focuses on the economy with eight presidential candidates included in the main event and four in the undercard version. Photographer: Daniel Acker/Bloomberg via Getty Images

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