Donald Trump believes that he’s fit to be president. Why, you ask? Because he knows so much about foreign policy or economics? Or perhaps because he has a lot of experience working in the public sector? No, because he’s rich. “I’m a much bigger business man and have (a) much, much bigger net worth. I mean, my net worth is many, many, many times Mitt Romney,” he said yesterday on CNN’s State of the Nation. “I built a very big net worth and I’d like to put that ability … to work for this country.” He added that he doesn’t...