but nobody ever hears about it is important because it sparks the wars with geronimo. really cool story. are you with me so far on this? because we have not even gotten to the republican party yet. [laughter] but we are getting there. i got plenty of time left. so. but what happened is that this treaty of guadalupe hidalgo in 1848 is going to break the concept that the american system has been set up in such a way that every individual can rise. in 1854, the game changes and it changes with the passage of the kansas nebraska act, which is my - favorite law and american history. because with the kansas nebraska act, the south reneged on the promise of the missouri compromise of 1820, which is not a constitutional amendment, only a law. so they are overriding that law. there are lots of twists and turns to that. in the northerners eyes, this was a sacred law, the idea that slavery would not spread into the west. because if slavery could spread into the west, rich men, slaveowners could take over the government. it was only a question of time until they took over the west