Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks at the AFP 

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks at the AFP Defending the Dream Conference in Milwaukee, Wis., Saturday, March 24, 2012. (AP Photo/Jae C. Hong)
Associated Press
Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks at the AFP Defending the Dream Conference in Milwaukee, Wis., Saturday, March 24, 2012. (AP Photo/Jae C. Hong)
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