Robert P. Jones has spent twenty years doing the unglamorous work of survey research on American religion — counting who shows up to which pews, tracking what they believe, watching the numbers move. Backslide is where that data collides with a moral argument he can no longer avoid. The opening gambit — comparing 2025 America to 1933 Germany — is either the most important sentence written about US democracy this decade or an act of analytical overreach. Jones bets everything on the former, and the demographic arithmetic is his primary evidence. The numbers Jones deploys are genuinely striking. White Christian Americans fell from 54% of the US population in 2008 to 41% today. White evangelicals — once a quarter of all Americans — now sit at 13%. The Southern Baptist Convention has shed more than 3 million members since its 2006 peak. Jones's central argument is that this decline is the engine of everything: a shrinking demographic that chose power over theology, Trump over scripture, ethnonationalism over the gospel it claims to preach. The Niemöller structure — where were you between 1933 and 1937 — is used explicitly and without embarrassment. Jones quotes Hannah Arendt's 1950 Commentary report on postwar Berliners losing the capacity for truth, applies it to contemporary American normalization dynamics, and connects it to the January 6 Capitol attack's largely ignored Christian iconography: wooden crosses, 'Jesus Saves' banners alongside Confederate flags. The House select committee report, he says, barely touched it. He treats that omission as a diagnostic failure, not a political accident. What Jones is documenting is a specific mechanism: segregated congregations that don't need explicit political sermonizing because Fox News, Christian radio, and socially homogeneous networks do the ideological work automatically. Attendance at white evangelical churches, PRRI data shows, correlates with more extreme anti-immigrant, anti-Black, and anti-Muslim views — not less. Church isn't moderating the politics; it's amplifying them. Pete Hegseth's Crusader tattoos and Pentagon worship services with Pastor Doug Wilson are the institutional expression of what the pew data predicted. The Trump-evangelical transaction, as Jones describes it, is a quid pro quo almost baroque in its transparency: votes in exchange for demographic restoration, a promise to 'fix it so you don't have to vote again.' Jones contrasts this with the Moral Majority and Values Voters era — when the religious right at least performed moral reasoning. What exists now, he argues, is overt ethnonationalist Christianity flying the flag of territorial claim: 'We believe this country belongs to us.' The Faustian quality of the bargain is Jones's sharpest analytical move — it explains why the theological incoherence of Trump-as-evangelical-champion doesn't matter to the people making the deal. The book's structural honesty is also its limitation. Jones writes from inside the tradition he's criticizing — Southern Baptist upbringing, master of divinity, deep scriptural literacy — which gives him unusual authority and also narrows the aperture. The argument is primarily aimed at Christians who might still be persuadable, not at readers trying to understand American authoritarianism from the outside. That's a legitimate choice, but it means the book's most politically urgent claims rest on a theological vocabulary that secular readers will find either clarifying or alienating, depending on their background. Backslide sits in a specific tradition of liberal religious witness that includes figures like William Barber II and the Sojourners movement — Christians arguing that Christian nationalism is bad Christianity, not just bad politics. Whether that argument reaches the people who most need to hear it is a question Jones can't answer with data. But as a diagnostic document of how a declining demographic made a catastrophic institutional choice, it is precise, serious, and — the Nazi comparison notwithstanding — carefully argued.
