The case involves major constitutional questions about presidential power—but its unusual posture could make it a dud.

President Donald Trump has expounded an extraordinary vision of his authority over the past month, relying on the Supreme Court’s decision last year granting him immunity from criminal prosecution, as a blank check in his broader drive for power.

The court’s order indicated that it may return to the issue as soon as next week, when a trial judge’s temporary restraining order is set to expire.