After watching hours of testimony, as a licensed psychotherapist that has been doing assessments for more than 30 years I can honestly say that it is my impression that this man is suffering from the early onset (stages) of dementia. No, I have not met with him but see for yourself; any decent psych can see it. There are many signs but namely one in particular. When he is put to the test, placed under stress to recall something recent it often appears that he does truly not remember import events or details and sometimes that he does not even know where he is. This is not simply a stall tactic. When he gives a blatantly wrong answer on something he said just an hour early he is lost and he just sits there with a dumbfounded look. Sadly this is not the man of just a few years ago. It may explain why he has refused so many public events and why he always contradicts himself. Obviously they can't announce that condition because the whole show would be over. Just watch his more than 30 min into questioning. It would make him very easy to manipulate him behind closed doors as well. His capacity is diminished!