"Most Americans were shocked by the violence they witnessed at the nation's Capital on January 6th, 2021. And many were bewildered by the images displayed by the insurrectionists: a wooden cross and wooden gallows; 'Jesus saves' and 'Don't Tread on Me;' Christian flags and Confederate Flags; even a prayer in Jesus' name after storming the Senate chamber. Where some saw a confusing jumble, Philip S. Gorski and Samuel L. Perry saw a familiar ideology:...