Well, all but the Maoists. But I was referring to their support for the war against Hitler, who at the time was beating up on the SU and Stalin.
See the movie "The Way We Were", with Streisand as the working class Jewish Red (not much of a stretch there) and Redford as the All American Boy (and Naval Officer) who falls for her. (Much more of a stretch, he's as "progressive" as she is)
I’ve only seen parts of that movie. That would be a sacrifice i’ll have to make to watch a movie with BS. ;)