DO IT! FDR packed the courts to get all his commie policies passed.
FDR’s 1937 attempt to pack the SCOTUS failed. There was no similar controversial attempt to pack the lower federal courts.
now, ultimately, he did place an incredible number of boot licking judges in all levels of the federal courts, but that was a product of the fact that he was in office for 20 years.
FDR did NOT pack the court. He just tried to.
It should also be considered that it will take Congressional action to do anything to any federal court.