U.S. Republican presidential candidates take their seats before Republican presidential debate in Mesa

 
U.S. Republican presidential candidates take their seats before Republican presidential debate in Mesa
U.S. Republican presidential candidates U.S. Rep. Ron Paul (R-TX) (L), former U.S. Senator Rick Santorum and former Massachusetts Governor Mitt Romney (R) take their seats before the start of the Republican presidential debate in Mesa, Arizona, February 22, 2012. REUTERS/Joshua Lott (UNITED STATES - Tags: POLITICS ELECTIONS)