Republican presidential candidates, former Massachusetts Governor Mitt Romney (L-R), Senator John McCain (R-AZ) and former Arkansas Governor Mike Huckabee, stand onstage at the Fox News/South Carolina Republican Party presidential debate at the Myrtle Beach Convention Center in Myrtle Beach, South Carolina January 10, 2008. REUTERS/Jonathan Ernst (UNITED STATES) US PRESIDENTIAL ELECTION CAMPAIGN 2008 (USA)