Actually, one of the commentators for CNN remarked that he has had some mental health issues recently and was considered to be '“fragile” at the moment. He also admitted that he was taking his anti-depressants when asked if he was on any drugs. That wasn’t exactly what the interviewer meant but it was revealing. I’m no Freud but I do know a bit about mental illness. If I had to speculate, I would suggest that he might be mildly bi-polar and was acting in a manic manner. Sometimes, people who have been diagnosed as depressed and given antidepressants take years before the manic element manifests itself. So, he may have been in that mode.
It was also clear that he was being incredibly protective of Stone, almost to the extent that you had to wonder about their relationship. He seemed to be more focused towards the end of the interview at CNN and was pretty clear that going before the Grand Jury might result in him having to inpugn Stone for contacts with Wikileaks and he just was not willing to do that because he considered the man his mentor and father figure. Apparently, he changed his mind late tonight and told the AP that he would go before Mueller, now. I guess he had either sobered up, or somebody sat him down and explained a few things to him.