Donald Trump demonstrated Monday that he has no qualms about going after one of Mitt Romney’s chief rivals, Rick Santorum. “There’s nothing — there’s no gift, no Christmas gift, that could be given better than Rick Santorum to the Democrats,” Trump said in a radio interview which aired in Michigan. Democrats, he continued, “are just salivating at that. And, you know, I don’t think they believe it’s going to happen. But boy, would they like it to happen because that would be an easy election.”