Rep. Mo Brooks (R-Ala.) took to the House floor on Monday to portray President Trump’s detractors as Nazis but ended up slurring them using an anti-Semitic conspiracy theory drawn verbatim from Adolf Hitler’s writings.

It’s 2019, and the Führer’s magnum opus, “Mein Kampf,” has become a playbook for political combat in Congress, at the very moment that Trump is calling the Democrats “anti-Jewish. ”

Brooks, a five-term Republican, accused Democrats and members of the media of propagating a “big lie” about collusion. The expression was coined by Hitler to describe how Jews used their “unqualified capacity for falsehood” to blame a top German military commander for the country’s losses in World War I. A lie could be so big, Hitler claimed, that it perversely defied disbelief.

It was unclear if Brooks grasped that by leveling charges of the “big lie,” he had inverted his own analogy, making Democrats the equivalent of interwar German and Austrian Jews. He set out to compare the other side to fascists, but he was the one employing a fascist smear — one that, ironically, came to define Nazi propaganda.

To quote Molly Ivins, “It probably sounded better in the original German.”