Republican presidential candidates Rick Santorum, Carly Fiorina, Mike Huckabee and Jim Gilmore stand for a group photo before the Republican "undercard" debate on January 28, 2016 in Des Moines, Iowa. Mr. Santorum and Ms. Fiorina are scheduled to meet with their former rival, President-elect Donald Trump, at his Trump Tower office on Monday, Dec. 12, 2016. (Associated Press) **FILE**
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