plus his recent test for cognitive dementia suggests early symptoms of Parkinson's.  Loss of dopamine production is sometimes replaced by ingestion of sugar leading to weight gain.  Stumbles are an early symptom. To make an analogy of shooting a man in the back seven times to a golfer missing a clutch putt, that's a cognitive stumble. I don't know what missing predictions indicate, other than a willingness to look a fool.

Ha, it just occurred to me:  Dopamine production is from the Substantia Nigra, brain cells in the Basal Ganglia.  Trump definitely has a substantial negro problem.