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.
History of the United States Democratic Party
The Democratic Party is the oldest voter-based political party in the world and the oldest existing political party in the United States, tracing its heritage back to the anti-Federalists and the Jeffersonian Democratic-Republican Party of the 1790s. During the Second Party System (from 1832 to the mid-1850s) under Presidents Andrew Jackson, Martin Van Buren and James K. Polk, the Democrats usually bested the opposition Whig Party by narrow margins. Both parties worked hard to build grassroots organizations and maximize the turnout of voters, which often reached 80 percent or 90 percent of eligible voters (at this time, suffrage was granted only to white males). Both parties used patronage extensively to finance their operations, which included emerging big city political machines as well as national networks of newspapers. The party was a proponent for slave-owners across the country, urban workers and caucasian immigrants.