Paul Krugman: “On Sunday Donald Trump celebrated his 80th birthday with a cage match on the White House lawn. The match and the events that surrounded it — especially the press conference with UFC fighters, shown above, held on the steps of the Lincoln Memorial — were a desecration of America’s capital, whose monuments and buildings have always endeavored to represent small-r republican virtues. The whole affair was an affront to the values on which this nation was founded and also unspeakably vulgar.”“That last criticism may strike some readers as elitist and trivial. Yet the vulgarity that is the hallmark of Trump and his surrounding circle of oligarchs is a symptom of something not at all trivial: The collapse of social norms.”