Her film career suffered due to her outspoken opposition to Senator Joseph McCarthy, the chief figure in the anti-Communist investigations of that era, and was temporarily derailed for having assisted in hosting a performance by the Bolshoi Ballet during the Second World War, though it was at the request of President Franklin D. Roosevelt. Wyatt returned to her roots on the New York stage for a time and appeared in such plays as Lillian Hellman's "The Autumn Garden", opposite Fredric March.