You can definitely say that his brain is over. The hate that these Rats and never Trumpers have to make them vote for an obviously senile and demented fool is beyond understanding. If the tables were switched and our side had to vote for an idiot that would definitely be replaced within weeks of becoming President,I would stay home. The American Left has lost all semblance of rationale and intelligence.
So my prediction is that it is a contested convention and Biden wins on 2nd vote w/ Super Delegates, as they will OK Biden because he will pick Hillary as his running mate. Then the 2 go on the campaign trail bashing Trump 24x7 in a 2 on 1 fight. Then if Biden wins, the 25th Amendment is used to dump Biden and restore Hillary the throne she was entitled to. After all she won the popular vote. Better than having him commit suicide.