In my State, there was a nomination process for a Republican senatorial campaign. The top two candidates for nomination were a moderately wealthy, conservative (on family, defense and business) and another, very wealthy conservative (”fiscally” conservative but very socially to the left and probably not good for defense).
Our Party chose the anti-family candidate. Other social conservatives refused to vote for him. I voted for him. I won’t do that again. If I did, that would be a “go” for our Party to move more to the left.
That was in 2004, BTW.