RICH LOWRY

The case of the city of Detroit isn’t much of a murder mystery. Various suspects have been fingered in its demise: The global economy. The fall of the auto industry. The decline of manufacturing generally. But it’s simpler than that. Detroit died of its own hand.

The city undertook a controlled experiment in what happens if you are governed by a toxic combination of Great Society big spenders, race hustlers, crooks, public-sector unions and ineffectual reformers. It spent and misgoverned itself into the ground. Detroit discovered that all the social spending in the world doesn’t deliver order,...