The guy is used up. He must be pushed and pushed hard up to the election so that he breaks. The breakdown must be public and obvious. Either that or get used to saying “President Harris”
I suspect that his handlers have seen this up close and personal, hence their decision to lock him up in the basement until the election. They will let him do virtual events well drugged up so he seems somewhat coherent.
So, unfortunately there is little opportunity to push him hard.
President Trump was laughing hard at him today in Pennsylvania for staying locked up in his basement. Trump correctly said no president can go hide in his basement.