This animated map shows how the states voted in every presidential election since the Civil War

The citizens of the United States have elected 44 presidents in 57 elections since the Constitution was adopted in 1789. Since the Civil War, presidential contests have been dominated by America's two major political parties - the Republicans and the Democrats. But over the last 150 years, state allegiance to these two parties has shifted greatly. Watch to see how the states voted in every presidential election since 1860. 

Produced by Alex Kuzoian

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