Changes

Following the capture of Mexico City in September 1847, Nicholas Trist, chief clerk of the Department of State and Polk’s peace emissary, began negotiations for a peace treaty with the Mexican Government under terms similar to those pursued by Slidell the previous year.

====Peace Talks with Mexico began====

[[File:Mexican_Cession.png|thumbnail|left|300px|Territories ceded by Mexico as part of the Treaty of Guadalupe-Hidalgo]]