Generally Republican Primary voters don't go 'hey, this person is more right/Trumpy/loopy' and vote for that person. That's a gross mischaracterisation that is often perpetuated here.
That's typically because Trump doesn't go out on a limb in most races. He usually picks the expected winner provided they are Trumpy enough, not just picking the most Trumpy candidate. This cycle is different, he's making very early endorsements and should have a meaningfully lower success rate because of that. There aren't too many examples of a Trump endorsement completely upending a race, 2018 FL Gov is one I can think of but not past that.
