Republican Party (United States)

The Republican Party is one of the two major contemporary political parties in the United States, along with the Democratic Party. Founded by anti-slavery expansion activists in 1854, it is often called the GOP (Grand Old Party). The party's platform generally reflects American conservatism in the U.S. political spectrum and is considered center-right, in contrast to the center-left Democrats.

The Republican Party has the second most registered voters as of 2004 with 55 million, encompassing roughly one-third of the electorate. In the 112th Congress, elected in 2010, the Republican Party holds a majority of seats in the House of Representatives, and a minority of seats in the Senate. The party holds the majority of governorships, as well as the majority of state legislatures, and control of one chamber in five states.