American Labor Party
American Labor Party, New York State left-wing political party (1936–56). Founded by labor leaders, it helped elect its member Fiorella LaGuardia mayor of New York in 1937 and 1941 and Herbert Lehman governor in 1938. In World War II it split over attitudes to the USSR: The right under David Dubinsky accused Sidney Hillman's left of being communist-controlled. The party disbanded in 1956.