Why in the name of Mensa membership does Donald John “Smart Person” Trump Sr. keep doing this?

He keeps telling us how he got an Ivy League education. He keeps insisting he’s a smart guy. He insists as well that he’s fabulously rich, that he’s the best negotiator and deal maker since the beginning of Planet Earth.

The president was responding to the attack that came from retiring U.S. Sens. Jeff Flake, R-Ariz., and Bob Corker, R-Tenn., both of whom have peeled the bark off of Trump in recent weeks.

So we hear — yet again! — from the Leader of the Free World that he really is the smartest guy in the proverbial room.

My experience over many decades of living — while working with other really smart people — has told me this fundamental truth: Those who really possess serious intellectual wattage never have to say how smart they are. They are not compelled to assert what should be obvious to those who know them.

I have members of my family along with a few friends who are bona fide geniuses. None of them has expressed — at least in my presence — that they are loaded with intellectual firepower.

My life’s experience has taught me another key lesson. It is that those who insist on telling you how smart and rich they are usually are neither.