It's literally on Google books. With chapters. It's completely narrative up to the purchase point. Furthermore the operative study for this article wasn't the point of the book. It was part of a larger body of research to talk about Christian Nationalism.

I'm glad your link worked for you. It 501'd for me and I'm guessing quite a few other people.

But that's okay because we found an interview with the author. Both articles have mangled this study. Which really isn't that unusual in media. The actual number is 21 percent of Protestants that attend church weekly. 30 percent in certain demographics, and 54 percent in one specific demographic.

And you're going to need citations to sell me on the entirety of religious America thinking we should be a religious country. (There's whole churches that reject this idea and embrace the separation of church and state. So good luck!)

Yes it is well documented that there are Christian Nationalists who want Trump to destroy our democracy. But blowing it out of proportion by defending sensationalist stuff like this does not help defeat them. If you were at all involved in statistics you'd know this is absolutely par for the course in journalism about statistics.