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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.

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Republican candidate Rick Santorum has made a clean sweep in the last three primaries. With Super Tuesday now less than a month away -- what's next for the campaign? Carol Marin and her panel tell us.

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The race for the republican presidential nomination moves to Florida after Newt Gingrich's huge weekend victory in South Carolina. We talk with Illinois representatives of the various campaigns.

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Mitt Romney

And they're off. After the first hurdle, it's Mitt Romney and Rick Santorum neck and neck. Carol Marin talks with Illinois delegates for the top four candidates in Tuesday's Iowa caucuses about what's next for the campaign.

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Republican presidential candidate Mitt Romney responds to an accusation that his Mormon faith is a “cult." We talk about Mormonism -- and what it means when faith and politics intersect.

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