california splits into 2 states: california (southern portion), jefferson (northern portion) greater idaho: combination of counties from eastern washington, eastern oregon, northern idaho, western montana d.c. shrinks, but new state forms from nova and southern maryland i could see new york splitting into 2 states. north carolina could split into 3 states. the entire south could form an autonomous region, perhaps a confederacy, if things keep going like they are. texas is the catalyst. if texas becomes its own nation, then i think the usa splits into 4-5 different countries. you'd have a ton of new states appearing as counties decide loyalties and land deals are made to make it workable.
United States