This paper seeks to examine antisemitism as a powerful notion in Philip Roth’s The Plot against America and the way it is rooted in the “Perpetual Fear” leitmotif, an almost transparent literary transposition of Hannah Arendt’s major tenet: “eternal anti-Semitism.” It primarily targets repetition and fantasy as they are the stylistic devices it is associated with. By introducing antisemitism as the result of Charles Lindbergh’s being fictitiously elected President of the USA, Roth boldly combines history and fiction, collective History and personal memory. He successfully undermines the myth of the American hero and gives this pseudo-political novel a personal twist due to the first person narration.