Was the book you were mentioning “Cult City” by Daniel Flynn?
https://www.amazon.com/Cult-City-Jones-Harvey-Francisco/dp/1610171519
I read the synopsis and it sounds like a similar story, but Amazon says that book was written in 2008. I’m pretty certain the extract I read was from a book from at least 5 years ago. I’ll keep my eyes open for this as I think it’s pretty important regarding vote fraud.