Republican Presidential candidates, from left, former U.S. Senator Rick Santorum, businessman Herman Cain, Representative Ron Paul (R-Tex.), former Massachusetts Governor Mitt Romney, Representative Michele Bachmann (R-Minn.), former Minnesota Governor Tim Pawlenty, former Utah Governor Jon Huntsman Jr. and former Speaker of the House Newt Gingrich (R-Ga.), appear for the first Republican Presidential debate ahead of the Iowa Straw Poll at Iowa State University in Ames on Aug. 11, 2011.