The population of California grew significantly, largely due to servicemen who were stationed at the new military bases/training facilities and mass influx of workers from around the U.S. in the growing defense industries. ... Over 500,000 people moved to California from other states to work in the growing economy.
You cannot. These states are high in population which has a major impact on the presidential votes. If one does not win over said states, they will mostly lose the election.
The American Federation of Labor was national federation of labor unions in the U.S. They emerged from a dispute with the Knights of Labor organization. They organized workers in craft unions.