Two possibilities (my opining)
The chump is an example of ARRESTED DEVELOPMENT and never grew up. He is still a pimply hot-to-trot little boy of 13 inside that obese old man body.
OR
He is erudite intelligent well-spoken and talks down to folks because he believes with all his heart that they are very stupid and wouldn't understand big words.
Either way not such a hot endorsement for a prez izzit?