It reads like an inventory of Donald Trump’s first two months back in the White House. A newly elected demagogic president, renowned for his rabble-rousing rallies and provocative stunts, makes a whirlwind start on taking office. He upends the country’s international relations in a series of undiplomatic demarches. State institutions are gutted or closed in an outburst of radicalism aimed at transforming government. Law enforcement authorities stage performative public roundups of those deemed, accurately or not, to be violent criminals. Critics complain of statutes being routinely broken. Universities and media are targeted in a clampdown on free expression. A widely...