Anyone who doubts that Barack Obama has a sense of humor should take a look of his endorsement of Joe Biden to be president of the United States. Really, it’s a masterly performance, and delivered, mirabile dictu, with a straight face.
Try it yourself. Grab a mirror. Assume your best ‘I’m-being-serious-and-sincere’ expression. Then say out loud that Joe Biden would bring ‘leadership guided by knowledge and experience, honesty and humility, empathy and grace’ to the Capital.