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Jewish Supremacism elaborates on his previous book, My Awakening, in which he claims that the different races of humanity can only fight, and that non-white races must ultimately lose. Duke presents Jews as predatory oppressors in his attempt to defend antisemitism. Jewish Supremacism takes this theme further, arguing that Jews collectively believe they are a superior race. Duke reinterprets history to fit his argument. For example, he claims that:
Duke attempts to establish motive by misquoting out-of-context passages from ancient Jewish writings, claiming that they prove that the majority of modern Jews believe they should rule the world.
Duke promoted the book on his site by comparing it to The Protocols of the Elders of Zion, Duke also toured Spain, Sweden, Hungary, and Russia to promote the book. Duke's visit to Russia prompted the Anti-Defamation League to urge a criminal case against the book's author and publisher under Russia's anti-hate crime laws.