Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks during a campaign stop at the Lake County Republican Party Lincoln Day Dinner, Friday, March 2, 2012, in Willoghby, Ohio. (AP Photo/Eric Gay)

Associated Press
Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks during a campaign stop at the Lake County Republican Party Lincoln Day Dinner, Friday, March 2, 2012, in Willoghby, Ohio.  (AP Photo/Eric Gay)
Republican presidential candidate, former Pennsylvania Sen. Rick Santorum speaks during a campaign stop at the Lake County Republican Party Lincoln Day Dinner, Friday, March 2, 2012, in Willoghby, Ohio. (AP Photo/Eric Gay)
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