A third party is a political organization that competes with the two main parties in a two-party system. Common third-party functions annoy the political establishment by expressing frustration, putting up concepts that are subsequently embraced by major parties, acting as a spoiler, and dividing the vote.
American political parties other than the two major parties—the Republican and Democratic Parties—are referred to as third parties in the country. In some cases, the term "minor party" is used in place of "third party." When they nominate presidential candidates, third parties are most frequently seen. Since the Republican Party established itself as a significant political force in the middle of the 19th century, no third-party candidate has been successful in winning the presidency. Since then, there have only been five elections (1892, 1912, 1924, 1948, and 1968) in which a third-party candidate won any states, and only one of those (1912) saw that candidate finish in second place nationally or electorally.
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