Jason DeSanto on Republican Debate

On Wednesday night, the remaining four GOP presidential hopefuls had their 20th debate. Did Rick Santorum solidify his surge or did Mitt Romney seize much-needed momentum? Northwestern's Jason DeSanto is here to help us keep score on Chicago Tonight at 7:00 pm.

The Arizona Republican Presidential Debate was held at the Mesa Arts Center and broadcast on CNN last night. Watch the full debate in the video below.

Did last night's debate damage Rick Santorum's presidential bid? Post your comments below or sound off on our discussion board!