GOP presidential candidate Rick Santorum campaigns in Boone, Iowa

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GOP presidential candidate Rick Santorum campaigns in Boone, Iowa

Republican 2012 presidential candidate and former Pennsylvania Sen. Rick Santorum makes remarks to supporters at the Pizza Ranch, as he campaigns in Boone, Iowa, January 2, 2012 in advance of Iowa's first-in-the-nation caucuses, January 3. Santorum has come from back in the pack of candidates to challenge former Massachusetts Gov. Mitt Romney and Texas Rep. Ron Paul for the lead in the polls. UPI/Mike Theiler

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