9.9.22 Santorum campaign.JPG

Former U.S. Republican presidential candidate Rick Santorum arrives to address the second session of the Republican National Convention in Tampa, Fla., Aug. 28, 2012. (CNS/Reuters/Mike Segar)
Former U.S. Republican presidential candidate Rick Santorum arrives to address the second session of the Republican National Convention in Tampa, Fla., Aug. 28, 2012. (CNS/Reuters/Mike Segar)