My oh my that did make me laugh out loud and I can just imagine the way it was delivered the pair of them's timing is better than a lot of the so called professionals.
I agree that the 2 of them have the so called professional comedians beat in timing AND wit. The exchange came after most of the skits had been aimed at Cheney.
Another Bush witticism was noting that Cheney's middle initial was B....."It stands for bull's eye,' Bush quipped. (Lots of laughter on that one.)