This essay argues that the insurrection at the United States Capitol on January 6, 2021, can be partially explained by the rise of what we call presidential eschatology, a religious master narrative that represents a historic shift from presidents appealing to God to presidents becoming a messiah figure. More specifically, we trace President Trump’s embrace of this kind of religious discourse—which we contend is a form of weaponized political communication aiming to undermine democracy—to his acceptance of a millennialist narrative fashioned by QAnon conspiracy theorists. Through a close reading of primary sources from the movement, the study illustrates how these eschatological themes surfaced in QAnon's discourse and were exploited by Trump and his allies as they sought to overturn the 2020 presidential election.