Have you read Ann Coulter’s book about McCarthy? Great book. The man was right.
Yes. It completely exposes the Sacco-Vanzetti pleaders, the Rosenbergs-are-innocent "protesters", the Hiss defenders, all of them, as mountebanks, continental liars, and Stalin's tools (or is it stools?).
McCarthy had the Venona material. He had those guys cold but couldn't blow the source. And the liberals, Progs, and Communists knew it.