Bad Faith, a new documentary on the rise of Christian nationalism in the United States, opens with an obvious, ominous scene – the storming of the Capitol on 6 January 2021 – though trained on details drowned out by the deluge of horror and easily recognizable images of chaos. That Paula White, Donald Trump’s faith adviser, led the Save America rally in a prayer to overturn the results for “a free and fair election”. That mixed among Trump flags, American flags and militia symbols were numerous banners with Christian crosses; on the steps of the Capitol, a “JESUS SAVES” sign blares mere feet from “Lock Them UP!”