It was Duke Metternich, the 19th century Austrian diplomat and statesman, who famously said, “When France sneezes the rest of Europe catches a cold.” Those days are, of course, long gone, with the country just another second-rate power—if a rather wealthy one—whose position owes more to past glories than present strength. In the last decade and more, however, a new virus has infected the western hemisphere and is now spreading across the world. It’s the Trump Derange