The Failure of Black Lives Matter

BLM's anti-police rallying cry was the dumbest, most self-destructive slogan in American politics in a very long time.

Black Lives Matter came up with the single most effective political slogan of the year.

While no one was likely to be overly impressed with Joe Biden’s line, “Build Back Better,” and Donald Trump’s “Keep America Great” or “Make America Great Again, Again” didn’t have the resonance of the original 2016 version, BLM broke through the clutter with a catchphrase that was memorable, pungent — and utterly devastating to Democrats.

After a...