How slaves and african americans contributed to the civil war?

Well slaves in a sense, helped the south tremendously by keeping their economy somewhat stable throughout the war. They also contributed emotionally because many slaves escaped with the sheer generosity of many people, including the American dream and the hope of a new life. 

Opposition to the nra came to a head in 1935, when the conservative supreme court declared the agency unconstitutional, claiming the nra gave the executive branch regulatory powers that belonged exclusively to congress. this decision began a series of court decisions that overturned key elements of the new deal.