Antisemitism has once again reared its ugly head in the United States, permeating American institutions, political discourse, and online ecosystems. Antisemitic ideas endanger not only the safety of Jewish Americans but also the integrity and stability of the nation itself. These pernicious ideas’ reappearance is no coincidence. US adversaries are engaged in coordinated campaigns to exploit antisemitism to infiltrate American institutions, sow domestic division, damage vital US alliances, and