Cassandra usually turned out to be right. So has David Shor, the Democratic Cassandra who was fired last June from his job as a poll analyst for the Joe Biden polling firm Civis Analytics for tweeting, after rioting broke out from a Minneapolis suspect’s death in police custody May 25, that violent rioting in 1968 cost Democrats enough votes to lose that year’s presidential election.

That was a message the woke Twitteratti didn’t want to hear; they wanted to cheer on the “mostly peaceful” (i.e., often violent) riots in cities across the country. But it turns out Shor’s point was well taken. Democrats’ cheers for last summer’s violent riots and their support of “defunding the police” cost Biden precious votes, nearly enough to defeat him despite his 7 million popular vote plurality, especially among non-white voters.