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Republican Presidential Debate, Mesa, Ariz., Feb. 22, 2012
Credit: Getty Images
MESA, AZ - FEBRUARY 22: Supporters of Republican presidential candidate U.S. Rep. Ron Paul (R-TX) holds sings outside of the Mesa Arts Center before the sart of a debate sponsored by CNN and the Republican Party of Arizona on February 22, 2012 in Mesa, Arizona. Republican presidential candidates U.S. Rep. Ron Paul (R-TX), former U.S. Sen. Rick Santorum, former Massachusetts Gov. Mitt Romney and former Speaker of the House Newt Gingrich will square off in the final debate before voters head to the polls in Michigan and Arizona's primaries on February 28 and Super Tuesday on March 6. (Photo by Justin Sullivan/Getty Images)
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