'Trump seems to have only one fixed idea, and it is about his own greatness.Trump’s failure is rooted in a distrust of expertise, which has led him to rely on the dubious counsel of his circle of cronies and family members. The President’s capacity to create confusion and turmoil is emerging as the mainstay of his reëlection campaign. He began his political career with one Obama conspiracy theory––birtherism––now hopes to prolong it with a new one. Along the way, he has helped promote the idea that Antonin Scalia may have been murdered in his bed, that windmills cause cancer, and that voter fraud cost him the popular vote in 2016. Not that he is incapable of changing his mind. Trump used to tweet that vaccines may cause autism. Now he is hoping that a vaccine comes quick—sometime before November. '