A "white supremacist" is an individual or group that believes white people are superior to people of other racial backgrounds. This ideology often promotes the idea that white people should maintain dominance in society, culture, and politics. White supremacists may advocate for segregation, discrimination, and violence against those they consider inferior. White supremacist movements have existed for centuries and can be found in various forms, including organized hate groups like the Ku Klux Klan and neo-Nazi organizations. These groups often use propaganda and rallies to spread their beliefs, which are widely condemned by society for promoting hate and division.