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.
Green Party of the United States
Peter Camejo was quoted in 2002 as claiming that he was a watermelon—green on the outside, but red on the inside. In January 2004, he initiated the Avocado Declaration, which compares Greens to avocados. "An avocado is Green on the outside and Green on the inside". The Declaration goes on to explain that Greens have a vital role in bringing democracy to the otherwise undemocratic two party system of the United States; that the Greens have a unique and independent identity as a third party, which cannot be subsumed into the Republican or Democratic parties; and that they cannot be dismissed by Republican or Democratic critics by implying that they are merely socialists or communists.