He should have just endorsed who he wanted to. What did he have to lose? He was leaving and didn't like McCain. It's not like it was going to ruin his political career
I didn't vote for him in the primaries (as no true conservative did) but I did hold my nose and vote for him in the general. It sucks but it's at least slightly better than a democrat.
The negative advertising against JD Hayworth was ridiculous and from his commercials, McCain looked like the second coming of Ronald Reagan. Voters are dopes -what are you going to do?