Can't verify the facts but this is how I remember it
"How did we get here? If you're under 40, you may not know that the Republican Party wasn't always like this. Gov. Ronald Reagan signed California's liberal abortion law in 1967; George H. W. Bush was a Planned Parenthood supporter, as was his father, Prescott, and his wife, Barbara, was regularly described as pro-choice. But when the culture wars began to rage in the 1970s, Republicans saw political gains in playing up the anxieties of a lot of people that society was changing too fast, and not in a good way."
I definitely believe that the Republican party has been hijacked. I have friends that have turned into walking Christian zombies."Praise the Lord." or something similar comes out every third sentence.