One legacy of the New Deal (perhaps even of Herbert Hoover) was the creation of government-sponsored, farmer approved cartels called research and promotion plans. Basically a referendum of farmers approves a plan to assess a fee on sales to be used by an organization to promote the commodity. Some raisin producers have taken USDA to court, made it to the Supreme Court, and won--at least that's how I interpret this post at SCOTUS blog. (In the case of raisins, there's requirements for the handlers to hold reserves, and the issue is whether the people suing were handlers or producers and whether the reserve requirement was a "takings" under the Constitution.
I wonder if athletes will try again to challenge the cartels run by the NCAA and the pro leagues?