The previous POTUS is accused of using his office to perform a series of actions that culminated in disruption of the function of Congress.
Several Congresspeople then concluded he could not be impeached because by the time they were able to consider the question, he had left office.
This ruling by SCOTUS suggests there is now no avenue to hold such a President accountable for such actions.
... and that's before we broach the question of whether "Removal from the Oval Office" is sufficient punishment for all manner of crime the President could commit from his position of power, because that is the upper limit of the effect of a Congressional impeachment. This seems to give a sitting President carte blanche to throw the Constitution in a wood-chipper if he can interpret it is within his official acts to do so.
