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.

Trump may ultimately defy judges and the rule of law, but at first he’ll bid for Supreme Court recognition of vastly expanded presidential powers.

The filing amounts to a challenge to a foundational precedent that said Congress can limit the president’s power to fire leaders of independent agencies.