FDR was as communist as Stalin.
That's an interesting statement, bray.
I doubt Franklin Roosevelt was ever a full communist, which would have been far too risky a move for a presidential candidate to make; conversely, I'm sure he hired communists and placed them in positions of great authority. Was he a communist dupe, a communist sympathizer, or a so-called "progressive" who figured he'd use communists for his own purposes? I can't say, but have a hunch history will.
The more interesting question is this: was Stalin a communist?
That leads to a still more interesting question: was Lenin a communist?
I believe both were thoroughly evil creatures who used communism as their paths to power. I believe the highest goal for both—and Mao, and Castro, et alia—was mass murder. If some other ideology had been available and looked likely to help them achieve the ultimate power, they'd have chosen that rather than communism. Ultimately, it's always about mass murder.
Your questions and many others are answered in Diana West's well-researched new book, "American Betrayal: The Secret Assault on Our Nation's Character." Roosevelt was definitely a Stalin dupe, and the conclusion West reaches is simply astonishing to anyone who thinks they know the real history of WWII. So many crucial facts have been suppressed or destroyed it boggles my mind.