Political Polarization 'Dangerous,' Psychologist Says

Photo of protesters at the Capitol in Washington, DC on 9/12/09. The Tea Party gathering was in protest of Obama's healthcare plan and government spending.
(Image credit: Dreamstime.)

CHICAGO - For the first time in American political history, Democrats and Republicans have sorted themselves into a perfect left-right split, a prominent political psychologist said this week, calling the result a "dangerous era" in U.S. politics.

Traditionally, political parties have been coalitions of broad groups of people, based more on industry, region and interest group than basic morals, University of Virginia psychologist Jonathan Haidt said here during a lecture at the annual meeting of the Association of Psychological Science. Since the 1970s and 1980s, however, Americans have increasingly sorted themselves by

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Stephanie Pappas
Live Science Contributor

Stephanie Pappas is a contributing writer for Live Science, covering topics ranging from geoscience to archaeology to the human brain and behavior. She was previously a senior writer for Live Science but is now a freelancer based in Denver, Colorado, and regularly contributes to Scientific American and The Monitor, the monthly magazine of the American Psychological Association. Stephanie received a bachelor's degree in psychology from the University of South Carolina and a graduate certificate in science communication from the University of California, Santa Cruz.