The Political Segregation of the United States

The federal bicameral legislature of the United States of America (U.S.) is currently dysfunctional, in that it is unable to pass legislation to address important issues such as immigration reform and economic development. I show that dysfunctional government in the U.S. is largely a byproduct of "political segregation": a phenomenon in which liberals tend to relocate to live in areas where liberal voters are in the majority, and conservatives tend to relocate to live in areas where conservative voters are in the majority. I analyze U.S. presidential election data by state from 1976-2012, and show that a shift occurred in voting behavior for key American states after 1976. I explore some of the reasons for these political trends and I review and discuss the psychological literature related to voting behavior.