 They are adamant that what we saw the other night, the Joe Biden we saw, is not a one-off, that there have been 15, 20 occasions in the last year and a half when the president has appeared somewhat as he did in that horror show. There was a fundraiser at which he started at the podium, and then he became very stiff, according to the people there, as if it were almost a kind of rigor mortis.