Subject: Re: SCOTUS on POTUS immunity
There shouldn't be a power to "pardon". That is a messed-up concept. You get a trial by your peers, with competent legal representation. Do mistakes happen? Sure. But I trust that system far more than a single guy saying "nah, we can ignore the judicial system and let you go".

If Congress were to pass such a law as you suggest, it would get struck down on challenge based on the Constitutional separation of powers. I would think that would be an easy challenge as it is so basic to the framework of the Constitution.