WHY WOULD TRUMP NOT LEAVE IF BIDEN IS ELECTED?

I hear that Trump says he might not leave office when defeated in the upcoming November election claiming voter fraud. In other words he might stage a coup. Why would he do that? Maybe he is afraid that the prosecuters in New York State will prove his guilt in his financial crimes and send him to jail. Maybe he just can't face the fact that the election will show how badly he failed as president. In any event he needs to be defeated in a massive tsunami. The Senate needs to be turned into a majority Democratic body. VOTE FOR BIDEN! ELECT DEMOCRATIC SENATORS! America needs to be rescued from Trump and the scoundrels who surround him.