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 onChicago 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.

Related Links:

Chicago Sun-Times article on Mitt Romney, Rick Santorum swap barbs in fiery Republican debate

Politico article on Republican debate in Arizona: 6 takeaways

Chicago Tribune article on Analysis: Debate a missed opportunity for Rick Santorum

The Washington Post article on Arizona Republican debate: Winners and losers

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