Her expression after she baited him on crowd sizes was perfect "is he really this dumb? Is... Is this working? Really? Holy hell, how did this buffoon ever become president? Jesus, I better not lose."
His first term was the best term, everyone is saying how it was the best term they ever seen, and that it was the smartest term, very smart. It was the best term in the history of terms.
That's why a second term is not needed. There's no reason for it.