How did the wilmot proviso propose to deal with the issue of slavery in the Mexican cession?

The Wilmot Proviso aimed to ban slavery in any territory acquired from Mexico during the Mexican-American War. This proposal sparked intense debate over the expansion of slavery into new territories and heightened tensions between the North and the South over the issue of slavery. Although the proviso was never passed into law, it played a significant role in shaping the national debate on slavery and the future expansion of the United States.