I’m not sure any republicans voted for this guy. The people who elected him were “independents” who switch from election to election and that “big tent” the republicans built. If I had voted “against” McCain and voted third party it sure wouldn’t have been to “teach the republicans a lesson”. It would have been because I didn’t see any difference in the two parties. Sarah Palin is the one reason I voted for the “republican”.
Oh but they did - lots of them — some I know, many on radio, and on various BBS inc. FR.