Trump truly believes that he's going to be President again, none way or another. If he doesn't win the actual vote he thinks that millions of his supporters will flood the streets and enthrone him. All the trials are merely a sideshow to him.
Reminds me of an old story. Son is condemned to be shot for cowardice. His father, the general, sends him a message to act bravely, because he will be pardoned at the last minute. The son faces his last hours coolly, because he has nothing to fear. When they finally slip the blindfold on he realizes that Daddy couldn't save him, but Daddy wanted him to die bravely. The only difference is Trump is the 'victim' who lies to himself.