Chapter 3 describes how the Constitution created a system for control of factions. But when those factions more and more polarized around the issue of slavery, the Northern and Western national majority was unable to rule and eventually had suppress the Southern minority in the Civil War. In recent decades, much Black migration out of the South and some White migration into the Republican Party have again polarized voter sentiment into red and blue states, or two tribes. This gridlock in the national government has again created a national majority which cannot rule (see the Senate cloture procedure), in which case a new political crisis plagues the country.