Plessey v Ferguson was overturned by Brown v. Board of Ed.
But that was the Supreme Court overturning what a previous Supreme Court had ruled. I don’t mean going before the Supreme Court and begging “pretty please”, I mean taking it totally out of their hands.
This was the Warren Court. He was an activist (and a Traitor) He overturned many laws that had previously been ruled in the opposite way. There was a movement to have him impeached, but the media wouldn’t hear of it. When Ike left office he said that the worst decision he ever made in his life was appointing Earl Warren to SCOTUS. Roe vs Wade was another gem. about every un-American ruling began under this evil man. He changed the intent of the 13 and 14 Amendments.