I just finished reading a bio of Pat Buchanan. In 1999, when he was thinking about running for president (again), he and his sister, who ran his campaigns, were invited to lunch by a congressman from Utah, representing the GOP establishment. This congressman told Buchanan we think it's great you want to run, but under no circumstances go after George W. Bush; he's going to be the nominee. The guy said the money had been lined up and they had a timetable for victory in the primaries, and he WOULD be the one.
Buchanan's sister asked where Bush stood on the issues, and the response was, "It doesn't matter." Later she remarked that it was impossible to tell people their primary votes would matter because the whole thing was fixed.
McCain gave bush a pretty good run for it in 2000