The 81 Per Centers

I read somewhere that 81 % of all white evangelical christians who voted in the Iowa primary voted for DJT. I’ve now gone back and tried to research where I found this nugget, but to no avail. I’m reluctant to use data that I can’t verify from at least two authentic sources, but in this case… this bit raised so many interesting issues that I’ve decided to jump in the deep end without water wings. Syllogistically, the phrase evangelical christians seems at first look to be redundant. I think, but don’t know for sure, that while all evangelicals are Christians, all Christians are not evangelicals. Which then begs the question...