President Obama delivering stand-up comedy.  Obama has outstanding timing.  Quoting Jeb Lund from the Guardian: "He's quick to read the room, weigh the beat, and sell the gag.  It is really reassuring to see a mentally agile and attentive person on the other end of American power structure, with the wit to pay attention and the humility to laugh even at his own expense. There’s a human being at the controls, more so than “some guy I can drink a beer with” or some other campaign artifice. That’s fun. Obama, and especially the Luther routine, were the best part of the night."