My instinct says a part of him probably is, even if it’s not entirely conscious. I think he didn’t expect to actually be elected, and he partly (perhaps even mostly) hoped he wouldn’t. IIRC he had made comments about not thinking he’d want the job, and he was already preparing to whine forever after about how the election had been rigged to take it from him.
Of course, his standard spiel is to make a preposterous bombastic egotistical sensation in everything he does, so it could just be that.
However, I think he’s a highly dissociated narcissist, which usually includes subconscious elements wanting to be exposed and called to task. When the fake life becomes intolerable and there’s no way out, the shreds of agonizing humanity inside wish it would all explode, and subconsciously conspire to self-sabotage.