The Colorado caucus offers a game-changing win for Santorum. The former Senator swept Mitt Romney and the remaining GOP candidates in three Republican contests, leaving the door for the GOP front-runner wide open as "Super Tuesday" approaches.
Read more...Rick Santorum pulls out another victory in Minnesota, helping achieve a sweep.
Read more...Can Rick Santorum halt Mitt Romney's momentum as the GOP front-runner?
Read more...Can Rick Santorum halt Mitt Romney's momentum as the GOP front-runner?
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