Republican Party (United States)

The Republican Party, also called the Grand Old Party (GOP), is one of two major political parties in the United States, the other being the Democratic Party. Founded on March 20, 1854 in Ripon, Wisconsin, it was formed due to anti-slavery activists who were against the Kansas–Nebraska Act, which the act allowed potential expansion of slavery into western territories. Since Ronald Reagan's presidency in the 1980s, the party's main ideology has been conservatism.