The Wilmot Proviso was a proposal by David Wilmot that was supposed to solve the issue of whether or not slavery would exist in the territories that the United States received after the Mexican-American War. Wilmot wanted to forbid slavery in these new territories gained by the US. However, this proposal does not pass in Congress and instead the issue of slavery in the new territories gained in the Mexican Cession was resolved with the Compromise of 1850.
