Forty years from now, politicians, writers, and historians may struggle to understand how America, once the quintessential middle-class society, became as socially stratified as Europe or even Brazil. Should that dark scenario come to pass, they would do well to turn their attention first to New York City and New York State, which have been in the vanguard of middle-class decline. It was in mid-1960s New York—under the leadership of a Barack Obama precursor, Hollywood-handsome John Lindsay—that the country’s first top-bottom political coalition emerged. In 1965, Gotham had more manufacturing jobs than any other city in the country. But the...
