"Evaluate the extent to which the Mexican American War marked a turning point in the debate over slavery. In the development of your argument, analyze what changed and what stayed the same from the period before and the period after it."
https://docs.google.com/presentation/d/1D2d_QcESlRcc9dZSooKMrrMg58Crkvxt6z2hM97XBOk/edit#slide=id.p1
https://avalon.law.yale.edu/19th_century/csa_texsec.asp
https://video.alexanderstreet.com/watch/foreigners-in-their-own-land