Its amazing that the whole Arizona delegation is endorsing McLame, eventhough they are all solid conservatives. I guees the favorite son mentality carries a lot of weight.
Actually, Trent Franks backed Duncan Hunter.
The favorite son thing is likely the reason Romney ran here to Michigan to announce.
It only means McCain has tied up the party apparatus, not the GOP base or AZ voters. AZ has problems with the Republican party, in their continued support of McCain. The base does not, for the most part. I would be surprised if McCain could win an AZ primary were there a viable alternative.