Because of the decline in public support for the SCOTUS, which has plummeted, in response not just to the justices’ controversial rulings, but also to the unethical behavior of some of them, what would happen, without that public support, if Mr. Trump simply ignored a decision by the nation’s highest court that he doesn’t like? It is a question that until now seemed largely unthinkable. But JD Vance said: “When the courts stop you, stand before the country like Andrew Jackson did and say the chief justice has made his ruling, now let him enforce it.