Animators working for Walt Disney begin what was to become a successful 5-week strike for recognition of their union, the Screen Cartoonists' Guild. The animated featureDumbo was being created at the time and, according to Wikipedia, a number of strikers are caricatured in the feature as clowns who go to "hit the big boss for a raise" - 1941
The U.S. Supreme Court declares the Depression-era National Industrial Recovery Act to be unconstitutional, about a month before it was set to expire - 1935