The Supreme Court reinterpreted the Article 1, Section 8, Clause 3 of the U.S. Constitution refers to Commerce clause, which gives Congress the power to control commerce among with the several states, the Indian tribes and foreign nations changing it from a check on national power to a source of national power in 1937.
For African Americans, it made jobs available because businesses were booming and a very small percentage of black fought in the war
For women, it allowed women to join the work force
hope i helped ^-^