The Republican Party traces its roots to the 1850s, when antislavery leaders joined forces to oppose the extension of slavery into the Kansas and Nebraska territories. The party ultimately stood for slavery’s complete abolition. Today, Republicans advocate reduced taxes as a means of stimulating the economy and advancing individual economic freedom, and they generally support conservative social policies. Republicans also tend to oppose extensive government regulation of the economy, government-funded social programs, and affirmative action. Regarding foreign policy, the Republican Party traditionally has supported a strong national defense and the aggressive pursuit of U.S. national security interests. Republicans also support states’ rights against the power of the federal government in most cases.