All political benefit would go to the democrats with none for the country.
Leave him there, politically bypassed & impotent, as a reminder of what happens when americans don't properly vet their candidates. Undo all of it, while he rages from the Oval Office.
If people don't see his arrogance spouting obvious untruths & annoyingly whistling his S's on TV from time to time they will probably forget.
This Bastard President is setting a precedent that will affect the republic for decades. IMO by NOT impeaching him the Senate and the SCOTUS are both abdicating power to the executive branch FOREVER. You can't unring a bell. This Jerk has usurped power on a grand scale, used the IRS against individual citizens! My god now he does everything by fiat. He thinks he is Caesar.
The US congress investigated Nixon because they THOUGHT he might be using the IRS as a weapon. On a hunch more or less. Now, with concrete evidence pointing to the highest levels NOTHING.