'Twas FDR's cowed Supreme Court, actually. In one of the first big cases to spring up after his "pack the courts" threat, the Supremes showed that they were now his little Chia pets. (They had shown some spine in a few decisions just before his threat.)
The court case was Wickhard v Filburn. It was a lovely way for FDR to announce the death of the Tenth Amendment without having to go to the press about it. Grr.
thanks for the information. I knew there was a court case, but I didn’t know the name of the case.