I heard about this on NPR the other morning. As far as I know all Americans have the right to support the political party of their choice, whether it be Democrat, Republican, Libertarian or Communist. The reporter talked to an old Brigade member who said, sure, probably some of them were Communists, but our main objective there was to fight fascism.

I can understand why some might find such a remembrance questionable; however, like I already said, anybody can be a Communist that wants to. (personally I don't think there are that many who want to anyhow)