So-called anti-fascist, or antifa, activists bearing shields emblazoned with those words assaulted any of the handful of beleaguered Trump supporters they could get their hands on at a small political rally over the weekend. All in the cause, mind you, of demonstrating their supposed opposition to hatefulness.

Too many people were willing to perfume antifa in the wake of Charlottesville, where it clashed with Nazi thugs who caused, and deserved, a wave of national revulsion. But Berkeley demonstrates once again the true nature of this left-wing movement, which is thuggish in its tactics and totalitarian in its sensibility. Anyone who at this point makes excuses for antifa — or worse, justifies it — is participating in its moral rot.

The antifa goons showed up in force at Berkeley at what had been a small “anti-Marxist” rally of Trump supporters at a public park. Antifa wore its usual fascistic garb of black masks and body armor. They overwhelmed the police who had been trying to maintain order and, holding aloft smoke-spewing flares, chanted, “Whose park? Our park!”