Two things are worth noting about Donald Trump’s whining over what he suddenly perceives as the “rigged” GOP nomination contest. 1. Trump is powerfully illustrating the fraud at the core of his case for the nomination. He claims that because he is a successful businessman he would be much more adept than conventional politicians at mastering the intricacies of problems and processes. He will, he brags, figure out how to deal with challenges in a way that maximizes American interests, assembling the best, most competent people to execute his plans of action. As a result, we are told, American will...