Or listen...I'm currently listening to the audiobook version of:

Money, Lies, and God: Inside the Movement to Destroy American Democracy

I've only gotten as far as Chapter 4, but it's clear the author has done her research and brings the receipts.

The author reveals how serious a threat to our democracy far right Christianity is. The groups that want to turn our country into a theocracy are well organized and well funded and, while comprised of many different groups with sometimes differing interests, they are all unified in wanting to convert our democracy into a country controlled by religion. And that religion is Christianity.

From the Amazon page: Why have so many Americans turned against democracy? In this deeply reported book, Katherine Stewart takes us to conferences of conspiracy-mongers, backroom strategy gatherings, and services at extremist churches, and profiles the people who want to tear it all down. She introduces us to reactionary Catholic activists, atheist billionaires, pseudo-Platonist intellectuals, self-appointed apostles of Jesus, disciples of Ayn Rand, women-hating opponents of “the gynocracy,” pronatalists preoccupied with the dearth of white babies, Covid truthers, militia members masquerading as “concerned moms” and battalions of spirit warriors who appear to be inventing a new style of religion even as they set about attacking democracy at its foundations.

Along the way, she provides a compelling analysis of the authoritarian reaction in the United States. She demonstrates that the movement relies on several distinct constituencies, with very different and often conflicting agendas. Stewart’s reporting and comprehensive political analysis helps reframe the conversation about the moral collapse of conservatism in America and points the way forward toward a democratic future.

Those on the religious right are convinced that our country was founded as a Christian nation, despite all factual evidence to the contrary. Combined with the MAGA trend towards fascism and it makes the future look bleak.