Going to court to try and usurp the Presidents executive branch power to appoint cabinet level employees?
You know 10-20 years ago this would have been laughed out of court.
Now however...
Has Congress passed a law granting the executive the power to appoint an (acting) AG?
He shall have Power, by and with the Advice and Consent of the Senate, to make Treaties, provided two thirds of the Senators present concur; and he shall nominate, and by and with the Advice and Consent of the Senate, shall appoint Ambassadors, other public Ministers and Consuls, Judges of the supreme Court, and all other Officers of the United States, whose Appointments are not herein otherwise provided for, and which shall be established by Law: but the Congress may by Law vest the Appointment of such inferior Officers, as they think proper, in the President alone, in the Courts of Law, or in the Heads of Departments.