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July 31, 2014

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Republican presidential candidates former House Speaker Newt Gingrich and former Pennsylvania Sen. Rick Santorum greet Fox News' Chris Wallace at the end of the Iowa GOP/Fox News Debate at the CY Stephens Auditorium in Ames, Iowa, Thursday, Aug. 11, 2011.

Charlie Neibergall / AP

Republican presidential candidates former House Speaker Newt Gingrich and former Pennsylvania Sen. Rick Santorum greet Fox News' Chris Wallace at the end of the Iowa GOP/Fox News Debate at the CY Stephens Auditorium in Ames, Iowa, Thursday, Aug. 11, 2011.