Two-party system
Third parties, meaning a party other than one of the two dominant parties, are possible in two-party systems, but they are often unlikely to exert much influence by gaining control of legislatures or by winning elections. While there are occasional opinions in the media expressed about the possibility of third parties emerging in the United States, for example, political insiders such as the 1980 presidential candidate John Anderson think the chances of one appearing in the early twenty-first century is remote. A report in "The Guardian" suggested that American politics has been "stuck in a two-way fight between Republicans and Democrats" since the Civil War, and that third-party runs had little meaningful success.
List of unsuccessful major party candidates for Vice President of the United States
The two current major parties are the Democratic Party and the Republican Party. At various points prior to the American Civil War, the Federalist Party, the Democratic-Republican Party, the National Republican Party, and the Whig Party were major parties. In the 1872 presidential election, the Liberal Republican Party put forward an unsuccessful major party vice presidential nominee, Benjamin Gratz Brown. Brown and his running mate, Horace Greeley, were also nominated by the Democratic Party.