Can Trump learn from the last three defeated incumbents?

Overall Lessons for Trump From the Last Three One-Term Presidents:

If the election verdict is “time to move on,” be graceful and accept the will of the people. A hallmark of our nation is its smooth transition of power.

But if defeated, look forward to “doing good” as an ex-president. Americans have a remarkably strong and consistent record of liking their ex-presidents (reelected or not) more than when they were in the Oval Office.

And please never again say, “It’ll end up being a rigged election” or “I should get a third term.” Both statements practically guarantee that Jimmy Carter will personally welcome you to his lonely, exclusive club where he is the only living member.