Thank you. I tried to keep my comment short, but your expansion was necessary on second thought. For better or for worse, I expect this to be relitigated. (Unless all outgoing presidents start the tradition of pardoning themselves from now on.)
The reason is that what constitutes an official act is up in the air, and let us be honest, the incumbent president is not known for staying inside the Executive branch's lane.
But the sheer unwillingness of the DOJ to prosecute, creates a catch-22: you need indictments to change or clarify Trump v. United States, 603 U.S. 593, and right now there are two options:
Somehow revive the private right to criminal prosecution (and of the president at that)(See Linda R.S. v. Richard D., (1973) 410 U.S. 614 (citations omitted)) or a Federal Court to appoint counsel to investigate a former or incumbent president. (Young v. U.S. ex re. Vuitton et Fils, (1987) 481 U.S. 787.) And I am not sure which one is less likely to happen. (Or for Congress to take that role beyond impeachment, which is even less likely.)
The case where the precedent was set suggests that it is within the outer perimeter of what the President does to give a speech designed to whip up a crowd before they head them off to the Capitol to attempt a coup.
While Trump may go farther than that, it is hard to imagine any other President in our history who would have considered doing anything more deserving of criminal prosecution in a US court.
Given how polarized our country has become and the requirement for a 2/3 majority in the Senate, it is also difficult to see how we could ever again wind up in a situation where the threat of impeachment is a significant concern to a sitting President. Given the current state of the Republican party, I'm not even sure whether an attempted military coup by Trump would get that result.
I agree completely. He doesn’t need to do a coup now that he has absolute power for four more years given the vacuum of leadership that is the legislative branch, but he absolutely would get away with it if he chooses to someday.