Art Young would have turned 150 years old this month, and the finest gift we could have given him is Bernie Sanders’s campaign to welcome socialism back into America’s parlor after decades of keeping it chained in the basement. Art Young? He was the greatest radical political cartoonist in our history, a one-of-a-kind American original. His ability to boil complex social issues down to memorable symbols, drawn with justifiable anger but permeated with genial warmth, would be an immeasurable asset to Bernie in explaining the realities of today’s class war to its casualties.

Capitalism and the…