"Congress would exclude slavery from any territory that in the future might be acquired from Mexico"

This quote by David Wilmot is describing the Wilmot Proviso, which was a proposed change to an expense that would have banned slavery in any area acquired from Mexico as a result of the Mexican-American War. Wilmot's proposal was a way to prevent the growth of slavery into the newly obtained territories, which would have been a major success for the anti-slavery movement. The proposition was eventually unsuccessful, however it was a significant advance in the battle versus slavery. Wilmot's quote is a suggestion of the value of the Wilmot Proviso and the development it represented in the battle against slavery. It also acts as a tip of the power of Congress to form the future of the country and the significance of defending what is right.