In the E.U., the state governments and federal institutions can ask the European Court of Justice (the ECJ) for an opinion on a legal matter. This is rare in the U.S., though waiting for a dispute to winds its way formally through district and appellate courts may be unduly bureaucratic, not to mention lengthy. On December 11, 2023, Special Counsel Jack Smith asked the U.S. Supreme Court the ECJ’s counterpart, to decide whether the former U.S. president Donald Trump had any immunity from criminal prosecution of his involvement in the riot at the U.S. Capitol that interrupted the formal counting by a joint session of Congress of the Electoral College presidential ballots. The trial was set to begin the following March, and the question of the former president’s immunity had to be decided before the trial could begin. Hence the “extraordinary request,” which I contend should not be extraordinary given the time frame and the important role of the highest court in safeguarding American democracy from domestic threats.
The full essay is at "On the U.S. Supreme Court."