Republican Presidential Primaries

Associated Press
FILE - In this April 3, 2012, file photo, Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks during a primary election night party in Cranberry, Pa. Rick Santorum is as unpopular in Pennsylvania today as he was six years ago, when home-state voters kicked him out of the Senate in a rout. That sour public perception may doom his fading chances of sticking around in the GOP presidential race, along with other hurdles that dot his path to a possible, and needed, victory in the April 24 primary. (AP Photo/Jae C. Hong, File)

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Republican Presidential Primaries

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