Compared to Donald Trump, Mitt Romney is a man of courage. Mitt released some of his tax returns although he must have expected criticism. Donald has refused. Mitt debated the President three times although I expected him to skip the third debate after the President wiped the floor with him in the second debate. Donald is already looking for a way out of his scheduled debates with Hillary.
I think that Trump is looking for a way out of his candidacy. He wanted free advertising and was surprised that he actually was nominated. Now his candidacy is going to hurt his businesses. People who can afford the Trump brand will start to boycott it, while Trump supporters mostly cannot afford the tariff.