Really? They kept electing McCain over and over again. So, your explanation doesn’t fly.
Except McCain’s wife had very deep pockets and he was funneled huge amounts of money from out of state, *and* his temper was so vicious that anyone who challenged him in the primary would be personally ruined, along with their business, their family, and anyone who helped them.
Apparently he learned a lot from Hillary, or something.
When the AZ party censured him, twice, his toadies got rid of any non-McCain loyalist with any position of power in the party.