Piers Morgan Tonight: Rick Santorum on new front-runner Rick Perry

Last night, GOP presidential candidate Rick Santorum was a guest on “Piers Morgan Tonight.” Santorum discussed the 2012 field – including new front-runner Rick Perry. “We’ve seen every one of these folks who have shot to the top of the ratings end up coming back down to earth once they have to get in front of the cameras in a debate,” he said. “We haven’t seen Governor Perry in a debate yet, we haven’t seen him really do much in the way of interviews.” He also touched on his view on gay marriage, and global warming.