Mitt Romney had a little fun at the president’s expense at a rally in Iowa over the weekend. He told this joke: “Obama went to the bank to cash a check. He didn’t have his ID. And the teller said, ‘You’ve got to prove who you are.’ And he said, ‘How should I do that?’ She said, ‘Well, the other day Phil Mickelson came in, he didn’t have his ID. So he set up a little cup on the ground, took a golf ball, putted it right into that cup, so we knew it was Phil Mickelson. We cashed the check. And then Andre Agassi came in, and Andre Agassi didn’t have his ID either. He put up a little target on the wall, took a tennis ball and a racket, hit it onto that target time and again. We knew it was Andre Agassi, so we cashed his check.’ So she said, ‘Is there anything you can do to prove who you are?’ And [Obama] said, ‘I don’t have a clue.’” After pausing for laughter, Romney continued, “And she said, ‘Well, Mr. President, do you want your money in small bills or large bills?’” More…