 Hundreds of examples to Bernstein's point that what happened on Thursday night was not a one-off. We've seen him not be able to complete sentences or complete thoughts. If the White House wanted to prove it was a one-off, they could do something very easily. They could put the president out in terms of in a primetime press conference before a national audience. And if they believe that really that this was a one-off or that he was over-briefed or that the makeup was wrong or whatever –