The Republican Party is one of the two major contemporary political parties of the United States, along with the Democratic Party. It is often referred to as the Grand Old Party or the GOP.
Founded in 1854 by anti-slavery expansion activists and modernizers, the Republican Party quickly surpassed the Whig Party as the principal opposition to the Democratic Party. In 1860, it came to power with the election of Abraham Lincoln to the presidency. The party presided over the American Civil War and Reconstruction and was harried by internal factions and scandals toward the end of the 19th century. Today, the party supports a conservative platform (from an American political perspective), with further foundations in economic liberalism, supply-side fiscal policies, and social conservatism.
The previous U.S. President, George W. Bush, was the 19th Republican to hold that office. Republicans currently fill a minority of seats in both the United States Senate and the House of Representatives, hold a minority of state governorships, and control a minority of state legislatures. It is currently the second largest party with 55 million registered members, encompassing roughly one-third of the electorate.
Chairman: Michael Steele of Maryland 
Vice-Chairman: Jan Larimer of Wyoming
Treasurer: Randall Pullen of Arizona
Secretary: Sharon Day of Florida
General Counsel: Reince Priebus of Wisconsin 
U.S. House Republican Leader: John Boehner of Ohio
U.S. Senate Republican Leader: Mitch McConnell of Kentucky
Governor's Association Chairman: Haley Barbour of Mississippi
Congressional Campaign Committee Chairman: Pete Sessions of Texas.
Senatorial Campaign Committee Chairman: John Cornyn of Texas
In 2010, a total of 1,325 candidates for State Senate and 5,276 candidates for State House are running under the Republican label. This totals for 47.5% of the 11,099 candidates running for state house in all parties. For State Senate, Republican candidates total for 48.1% of the 2,765 candidates running for State Senate in all parties. State legislative elections will take place in 46 states during the 2010 election cycle.
- See also: Gubernatorial elections, 2010'
In 2010, a total of 37 Governorships will be contested across the United States. The Republican Party has fielded a candidate in each of the 37 gubernatorial contests.
- Republican National Committee
- Senate Republican Conference
- House Republican Conference
- National Republican Senatorial Committee
- National Republican Congressional Committee
- Republican Governors Association
- Republican Jewish Coalition
- Republican State Leadership Committee
- National Black Republican Association
- Republicans Abroad International
- Young Republican National Federation
- College Republican National Committee
- Why politics is fun from catbirds' seats Neuhart, P. (22 January, 2004), USA Today
- Republican National Committee "Leadership"
- JSOnline "Priebus named RNC general counsel", July 30, 2009
- NRCC "NRCC Leadership"
- NRSC "About the NRSC"