I think if FDR leaned a little more to the extreme he could form a dictatorship under him. Despite what we all may think FDR became president at a time when people encouraged dictatorship. William R. Hearst made, and consulted president-elect FDR, a film called
Gabriel Over the White House, which argued for an American dictator.
FDR had numerous speech drafts to the American Legion in which he "would call upon you, as one would call upon men as in any war," to combat the economy. Politicans feared "socialist" Michigan would revolt by 1933. Despite what we know newspapers of the time show a clear fear of revolution, as well as the desire to counter it.
So why not FDR as a facist? A man who runs the USA, setting up programs to save the economy, and defend the people. As a fiscal conservative I can see FDR working to defned the wealth of people as a dictator, just as he did OTL.