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The Republican Party, commonly referred to as the GOP , is one of the two major contemporary political parties in the United States, the other being its historic rival, the Democratic Party. The party is named after republicanism, the dominant value during the American Revolution. Founded by anti-slavery activists, modernists, ex-Whigs, and ex-Free Soilers in 1854, the Republicans dominated politics nationally and in the majority of northern States for most of the period between 1860 and 1932.

Chairperson Reince Priebus (WI)
Ronna Romney McDaniel (MI)
President-elect Donald Trump (NY)
Vice President-elect Mike Pence (IN)
Speaker of the House Paul Ryan (WI)
House leader Majority Leader Kevin McCarthy (CA)
Senate leader Majority Leader Mitch McConnell (KY)
Founded March 20, 1854; 162 years ago (1854-03-20)
Preceded by Whig Party
Free Soil Party
Headquarters 310 First Street SE
Washington, D.C. 20003
Student wing College Republicans
Youth wing Young Republicans
Teen Age Republicans
Women's wing National Federation of Republican Women
Overseas wing Republicans Overseas
Ideology Majority:
Conservatism
Economic liberalism
Fiscal conservatism
Social conservatism
Federalism
Factions:
Right-wing populism
Right-libertarianism
Neoconservatism
European affiliation Alliance of Conservatives and Reformists in Europe (regional partner)
International affiliation International Democrat Union
Regional affiliation Asia Pacific Democrat Union
Colors      Red
Seats in the Senate
54 / 100
Seats in the House
247 / 435
Governorships
31 / 50
State Upper Chamber Seats
1,126 / 1,972
State Lower Chamber Seats
3,038 / 5,411
Territorial Governorships
2 / 6
Territorial Upper Chamber Seats
12 / 97
Territorial Lower Chamber Seats
7 / 91
Website
www.gop.com

The Republican Party, commonly referred to as the GOP (abbreviation for Grand Old Party), is one of the two major contemporary political parties in the United States, the other being its historic rival, the Democratic Party. The party is named after republicanism, the dominant value during the American Revolution. Founded by anti-slavery activists, modernists, ex-Whigs, and ex-Free Soilers in 1854, the Republicans dominated politics nationally and in the majority of northern States for most of the period between 1860 and 1932.

There have been 18 Republican presidents, the first being Abraham Lincoln, who served from 1861 to 1865, when he was assassinated, and the most recent being George W. Bush, who served from 2001 to 2009. The President-elect of the United States, businessman Donald Trump of New York, will become the 19th Republican president on January 20, 2017.

The Republican Party's current ideology is American conservatism, which contrasts with the Democrats' modern liberalism. The Republican Party's platform involves support for free market capitalism, free enterprise, fiscal conservatism, a strong national defense, deregulation, and restrictions on labor unions. In addition to economic themes there are important social-conservative policies (particularly opposition to abortion and same-sex marriage), and traditional values, usually with a Judeo-Christian ethical foundation. Once dominant in the Northeast and Midwest, the party's core support now comes from the South and the Mountain States, as well as conservative Catholics, Mormons, and evangelicals in the South and across the country.

In the 114th United States Congress, Republicans have their largest majority in the House of Representatives since the 1928 election and a majority of seats in the Senate. The party also holds a majority of governorships and state legislatures. Specifically, 68 out of 98 partisan state legislative chambers have Republican majorities.

According to CBS news, "The Republican National Committee says the acronym "GOP" dates back to 1875, at which time it meant 'Gallant Old Party'."