David Wilmot was a Pennsylvania-born congressman who opposed slavery. His "proviso"—a clause tacked on to a number of legislation being debated in Congress—prohibited slavery in all of the new territory won from Mexico following the Mexican War. Although the proviso was well-liked in the North, it was vehemently opposed by the South and never became a part of the legislation. It declared that slavery would be outlawed in any new area that the United States might take over from Mexico. The argument over whether slavery still exists in the West was rekindled.
A major difference was that Roosevelt felt that the government spending to help people who were in economic trouble, was much more acceptable than Hoover thought it was. Hoover believed in the idea of "rugged individualism" in which people are largely responsible for their own welfare.
Thus the USSR became the first state to have as one objective of its official ideology the elimination of existing religion, and the prevention of future implanting of religious belief, to establish state atheism (gosateizm).