I am very sorry to say that I believe that he has dementia; you can see it from his interviews when he stutters; that is nothing to do with his stuttering but due to his age.
The democratic party has covered it up and by having a young non white side kick, in the form of Kamala Harris, who is a great politician, they are diverting attention from what is REALLY happening to the president. Wait a few years and I will be proven right.
I have sadly had both parents suffer from Alzheimer’s and I have seen the early warming signs. My mother is now dead and my father is in the advanced stages of the disease; he is just a shell now.