The New Deal, it is always worth remembering, was adopted by President Roosevelt at a time of such progressive and Left militancy that its programs—radical by today’s standards—appeared at the time to be the only way to prevent full-scale revolution. And this was no idle threat. When Upton Sinclair, the muckraking author of The Jungle, ran for governor of California in 1934, it was something like the Bernie Sanders campaign of its day. Sinclair was a champion of a more left-wing version of the New Deal, arguing that the key to ending poverty was full state funding of workers’ cooperatives.

