Republican presidential candidates stand onstage during the Republican Party presidential candidates debate in Sioux City

 
Republican presidential candidates stand onstage during the Republican Party presidential candidates debate in Sioux City
Republican presidential candidates (L-R) former U.S. Senator Rick Santorum (R-PA), Texas Governor Rick Perry, former Massachusetts Governor Mitt Romney, former U.S. Speaker of the House Newt Gingrich (R-GA), U.S. Representative Ron Paul (R-TX), U.S. Representative Michele Bachmann (R-MN), and former Utah Governor Jon Huntsman pose before the Republican Party presidential candidates debate in Sioux City, Iowa, December 15, 2011. REUTERS/Eric Gay/Pool (UNITED STATES - Tags: POLITICS ELECTIONS TPX IMAGES OF THE DAY)