Former Pennsylvania Senator Rick Santorum meets delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Lynne Sladky)

 

              Former Pennsylvania Senator Rick Santorum meets delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Lynne Sladky)
Former Pennsylvania Senator Rick Santorum meets delegates during the Republican National Convention in Tampa, Fla., on Wednesday, Aug. 29, 2012. (AP Photo/Lynne Sladky)