What were the economic, social and political effects of the Mexican-American war?

After this vote, the antebellum political landscape was forever changed. The failure of the Wilmot Proviso only put off the issue of slavery for so long.

Explanation:

The Mexican-American war (1846-1848) changed the slavery debate. It almost doubled the size of the United States and began a debate, between Northerners and Southerners, over what to do with the newly acquired land.

b.provides a written record of the transaction