 "Donald Trump")
When the historian Arthur Schlesinger, Jr., published his bestseller The Disuniting of America in 1991, he didn’t seriously entertain the worst-case scenario suggested by the title. At the time, the Soviet Union and Yugoslavia were imploding, while separatist movements in Quebec, East Timor, Spain’s Basque country, and elsewhere were already clamouring for their own states.
But when it came to the United States, Schlesinger’s worries were principally focused on the far smaller battlefield of the American classroom and what he saw as multiculturalism’s threat to the mythic “melting pot.” Although he took those teacup tempests seriously, the worst future Schlesinger could
