Imagine, again, that Trump concedes that the Constitution forbids him from running again. That means he will be out of office permanently in 2029. What kind of ex-president will he be? Will he be content to become a quiet retiree, playing golf every day?
Of course not! He will remain the noisiest figure in American politics regardless of which party wins the presidential election. If J.D. is his successor, he will behave as the acting president and make the real one’s life completely miserable. If a Democrat wins, he will effectively be the leader of the opposition as long as he wishes.
All I can say is, thank God he’s so old.