American political parties

This is a list of political parties in the United States, both past and present.

Current United States Congressional seats

Congressional leadership of the House of Representatives

Congressional leadership of the Senate

The Vice President of the United States has the additional duty of President of the Senate. It is the Vice President's duty as President of the Senate to cast a tie-breaking vote in the event that "they be equally divided"—an equal number of Senators voting both for and against a motion.

Per Merriam-Webster, a major party has "electoral strength sufficient to permit it to win control of a government usually with comparative regularity and when defeated to constitute the principal opposition to the party in power.". In the United States, only the Democratic and Republican parties meet this definition.

This listing of minor parties does not include independents.

These parties are based only in states or certain regions and rarely, if ever, offer candidates for national offices. These are all parties that are unaffiliated with national parties. Each state has official state chapters of the major parties as well as some of the minor parties.

These organizations do not nominate candidates for election but otherwise function similarly to political parties. Some of them have nominated candidates in the past.

Socialist Educational Society

Workers' Socialist Party

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