Santorum blames "panic"

Associated Press
Republican presidential candidate, former Pennsylvania Sen. Rick Santorum addresses supporters outside the campaign headquarters in Brookfield, Wis., Saturday, March 31, 2012. (AP Photo/Jae C. Hong)

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As more conservative leaders within the Republican Party show public support for Mitt Romney--most recently Rep. Paul Ryan and tea party favorites Sen. Ron Johnson of Wisconsin and South Carolina Sen. Jim DeMint--Rick Santorum insisted that the endorsements were a sign that the party establishment was in a "panic."

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