The pro-life movement is huge among trad Catholics, and Catholicism is its roots. I think evangelicals came along pretty early. The Republicans aligned naturally, their base being heavily Christian.
The pro-life movement is older than the Reagan era courting on Christians to grow the Republican base. So it was not a Christian base that caused a shift, it was the other way around.
The pro-life movement is older than the Reagan era courting on Christians to grow the Republican base. So it was not a Christian base that caused a shift, it was the other way around.