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NEWTON, IA - DECEMBER 28:  Republican presidential candidate U.S. Rep Ron Paul (R-TX) looks on before the start of a town hall meeting at the Iowa Speedway on December 28, 2011 in Newton, Iowa.  With less than one week to go before the Iowa caucuses, Ron Paul is trying to maintain his lead as he campaigns through Iowa.  (Photo by Justin Sullivan/Getty Images) Justin Sullivan/Getty