How have third parties changed the United States?

Third parties may also help voter turnout by bringing more people to the polls. Third-party candidates at the top of the ticket can help to draw attention to other party candidates down the ballot, helping them to win local or state office.

America’s two-party political system makes it difficult for candidates from outside the Republican and Democratic parties to win presidential elections. Since 1920, in fact, only four third-party candidates—Robert La Follette in 1924, Strom Thurmond in 1948, George Wallace in 1968 and John Hospers in 1972—have been able to win even a single electoral vote.

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