Donald J. Trump’s war on what he calls the “enemy of the American people” has taken a seriously counterproductive and dangerous turn.

It’s also patently frightening. Outrageous. Un-American. Pick whatever negative description you prefer.

The president has ordered several major media organizations excluded from White House briefings. They include CNN, the New York Times, the Los Angeles Times, the New York Daily News, The Hill, Buzzfeed, Politico and the BBC.

He calls them “fake news” outlets. He doesn’t like the tone of their coverage. He is limiting access to, um, more “friendly” media organizations.

So help me, I am running out of ways to express my utter outrage over this treatment of the media by the president of the United States. Not since the late Richard Nixon have we seen anything quite like this — and not even Tricky Dick managed to do what one of his successors has done.

If you think for a moment about this, you have to wonder: What in the world is Trump hoping to accomplish? White House press flack Sean Spicer will deliver his briefings to certain media outlets; meanwhile, those that are left out will be left to write about their being excluded. That reporting, then, might simply anger those Americans who understand the meaning of the First Amendment’s protection of a “free press.”

Trump’s bullying of the media is an outrageous act of a thin-skinned narcissist who doesn’t comprehend — seemingly at any level — what the nation’s founders envisioned when they provided for a press that should be free of government intimidation.

We now are hearing the president of the United States of American declaring that the media are the “enemy of the people.”

Are you kidding me?

The irony of this approach is mind-boggling in the extreme. It can be argued that Trump owes his ascent to the pinnacle of political power to the media, which covered his every utterance for months without ever challenging their veracity.

Now that they have done what they should have done from the beginning, the president has decided he doesn’t like being challenged.

Mr. President, that’s what the media do. It’s their job.

You, sir, do not get it.