I think someone told him that a President who doesn't control the budget isn't much of a president. He has a much better life now, and doesn't have to answer to anyone. Had he run and won, he would have had to answer to everyone. Given that choice, it's better to be the one who does the firing than the other way around. I can't see why anyone in business would even consider running for office. No power, endless headaches, and the pay sucks.