I was stunned to hear Donald John Trump deliver a blistering and crass rebuke of Joseph Biden Jr., in which he said the only way he succeeded at being vice president was that he figure out “how to kiss Barack Obama’s a**.”

I want to offer a few examples.

My goodness, the irony of that statement is astonishing in the extreme. You see, the only thing that the president of the United States seems to demand from those who answer to him is for the underlings to kiss his own a**.

Trump demands loyalty from, say, the director of the FBI. When James Comey doesn’t deliver it, he gets fired. Attorney General Jeff Sessions wouldn’t take part in the Russia investigation because he recognized the obvious conflict of interest, given that he worked on Trump’s campaign and couldn’t investigate himself; he recused himself and then got fired by Trump.

Secretary of State Rex Tillerson got canned because he challenged the president’s authority to enact certain policies; so did former national security advisor H.R. McMaster.

The list is seemingly endless.

Donald Trump wants his sycophants to kiss his backside. He demands fealty, blind loyalty. He doesn’t appear to tolerate dissent.

So, for the president to make such a suggestion about former Vice President Joe Biden is laughable on its face.

Except that it’s not funny.