Donald J. Trump, president of the United States, has just posted a Twitter message about a man he nominated to become the secretary of state, the nation’s top foreign service officer.

Mike Pompeo is doing a great job, I am very proud of him. His predecessor, Rex Tillerson, didn’t have the mental capacity needed. He was dumb as a rock and I couldn’t get rid of him fast enough. He was lazy as hell. Now it is a whole new ballgame, great spirit at State!

Yep, that’s our president, the guy who sought to present the United States’ foreign policy statements through its secretary of state.

Now he calls the man he fired earlier this year “dumb as a rock.”

I don’t believe Rex Tillerson is “dumb as a rock.” He ran ExxonMobil oil company before he took the job as the nation’s top diplomat. I don’t believe he was well-suited for the job at State.

It is simply astonishing, though, that the president — our head of state, our commander in chief, the leader of the free world — would resort to the kind of language he is using to denigrate someone he hired for this most sensitive of jobs.

And we’re expected to take the president seriously?