Meanwhile, another Republican presidential hopeful is coming under criticism for comments on the campaign trail. Earlier this week, former New York Mayor Rudy Giuliani said a Democratic win would leave the U.S. at risk for an attack on the scale of 9/11. Democrats have slammed Giuliani’s remarks. The first Democratic presidential debate is set for tonight in South Carolina. The Wall Street Journal reports Senator Barack Obama has narrowed in on front-runner Senator Hilary Clinton. Obama is now 5 percentage points behind Clinton, up from 12 points last month.