reflecting on the immunity decision a bit, what the Court seems to be saying is that every element of the executive branch is at the President’s disposal, no matter what he wants to use it for. his motives don’t matter. the office is a weapon to be wielded however he sees fit.
the simple way to think about it is that the office of the presidency is a gun. the Court has held that when you become the President, you have an unfettered right to use that gun any way you please. an insane decision.
