From Cain and Romney campaigns, no comment on Perry's birther flirtation

By Greg Sargent As you know, Rick Perry doubled down on his birther flirtation this morning, claiming in an interview that Obama's birthplace is "a good issue to keep alive." "It's fun to poke him a little bit and say `Hey, let's see your grades and ... From Cain and Romney campaigns, no comment on Perry's birther flirtation