A political party is a political organization that seeks to attain political power within a government, usually by participating in electoral campaigns. Parties often espouse a certain ideology and vision, but may also represent a coalition among disparate interests.
Political scientists have distinguished between five families of political parties. These include elite-based parties, mass-based parties, ethnicity based parties, electoralist parties and movement parties. Each of these types includes different sub-types of political parties. The electoralist party, for example, can be subdivided into three subtypes, the personalistic, the catch-all and the programmatic party. According to this, the Republican Party in the United States is considered an electoralist - programmatic party, while the Democratic Party is seen as an electoralist catch-all party.

| Principles of American Democracy |
12.6 Students evaluate issues regarding campaigns for national, state, and local elective offices.
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1. Analyze the origin, development, and role of political parties, noting those occasional periods in which there was only one major party or were more than two major parties.
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| Political Parties | Funding | 2 | 3 | 4 |