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Republican supporters massed around the site of the nationally televised CNN GOP debate in Mesa, Arizona (AZ).
Republican presidential hopefuls, Mitt Romney, Ron Paul, Newt Gingrich, and Rick Santorum, faced for the final debate on Wednesday, February 22, 2012, before a dozen states take to the polls on Super Tuesday. CNN anchor and chief national correspondent John King moderated the two-hour debate on broadcast CNN.