Still pending before the Supreme Court this week is an appeal from Trump's lawyers that seeks the firing of three Democratic appointees to the Consumer Product Safety Commission.

The U.S. Supreme Court's ruling last year on presidential immunity has broadened the limits of legal protection for presidents.

The ruling represents additional evidence of the Roberts Court's inexorable move towards a unitary theory of the executive branch, which posits that the president should be able to control the exercise of all executive power,