Much of politics is involved with the distribution of resources and the regulation of intergroup relations. Social dominance theory posits that social ideologies provide social justification for policies that have unequal effects on different social groups. In the present studies, we examine the mediating role that ideologies have in transforming people's general orientation toward group inequality into policy support. Using data from 5 samples, we offer evidence that social dominance orientation orients people to support discriminatory ideologies, which in turn influence support for policies. Support for the theoretical model was shown in studies of both long-standing social policy attitudes, such as toward social welfare and military programs, and of unfolding political events, including Clarence Thomas' nomination to the Supreme Court, the Persian Gulf War, and reinstitution of the death penalty in California.