It’s not unknown, of course.

In ancient Egypt, there was the symbol of the ouroboros, the snake that eats its own tail. Nerve-addled octopuses sometimes consume their own arms.

But we’ve never watched a president so hungrily devour his own presidency.

Soon, there won’t be anything left except the sound of people snickering.

Consumed by his paranoia about the deep state, Donald Trump has disappeared into the fog of his own conspiracy theories. As he rages in the storm, Lear-like, howling about poisonous fake news, he is spewing poisonous fake news.

The Hirshhorn has a sold-out exhibit of Yayoi Kusama’s stunning infinity mirror rooms. But they are nothing compared to the infinity mirror room of Trump’s mind, now on display a mile and a half away at the White House.