A few comments from Orin Kerr’s Blog:
Haven’t read the decision, don’t care about the politics, but is the poster prohibited political activity?
Uh-oh, it’s a poster featuring a smooth-talking, unreconstructed leftist cult leader with ambitions of power! And Che Guevara!
He has a picture of a Marxist on his wall!
And one of Che Che Guevara!
But Che supported the death penalty. Didn’t he actively oversee hundreds of executions while running La Cabana Fortress prison?