General Discussion

When the economy was melting down under Bush Jr in 2008, it became very obvious to me that he had fallen off the wagon, and was drinking pretty heavily at that point. It wasn't a major news story primarily because Obama and John Glenn were in the middle of the 2008 campaign and the stock market was dominating the news cycle, but the few times where you did see him, he was clearly drunk.

Trump acts like someone who increasingly has trouble regulating his drug intake, and its definitely taking its toll. I think the consensus view here is likely correct: he's an Adderall addict, which also has the side effect of inhibiting Dopamine uptake, much like cocaine. This can enhance many of the symptoms that you see already in a narcissistic personality - difficulty in finding pleasure in ordinary activities, a near constant craving for social stimulus, sociopathic tendencies, paranoia, decreased cognitive capacity and so on. Factor in age, bad diet, a family history of dementia, and quite possibly the lingering effects of long Covid, and what you see is a person who is NOT capable of being president.