The Republican Party's current ideology iAmerican conservatism, which contrasts with tDemocrats' morprogressive platform (also called modern liberalism). Its platform involves support for free market capitalism, free enterprise, fiscal conservatism, a strong national defense, deregulation and restrictions on labor unions. In addition to advocating for conservative economic policies, the Republican Party is socially conservative and seeks to uphold traditional values based largely on Judeo-Christian ethics. The GOP was strongly committed to protectionism and tariffs from its founding until the 1930s, when it was based in the industrial Northeast and Midwest. Since 1952, there has been a reversal against protectionism and the party's core support since the 1990s comes chiefly from the South, the Great Plains, the Mountain States and rural areas in the North, as well as from conservative Catholics, Mormons and Evangelicals nationwide.