You really don't know how Primaries work in AZ, do you?
I expect you will fill all of us in on exactly how primaries work, in Arizona.
I show below the link, for the primary race in question. The fact McCain won by 56% to 32% over Hackworth, informs me democrat crossovers did NOT alter the election.
http://en.wikipedia.org/wiki/United_States_Senate_election_in_Arizona,_2010According to this site, Arizona has a closed primary.
https://grassrootsidgop.wordpress.com/list-of-states-with-open-and-closed-primaries/The fact McCain won the general by 59% to 39% over the democrat, informs me McCain is popular enough in his home state to win both
Republican primaries, and general elections.
The perpetual "true conservatives" think they wield more power, than they actually do. We had a prolific member on this site, Arizona resident, who assured the members that McCain would fail, since NOBODY she knew supported McCain.
That pattern seems to repeat itself over and over; the idea one hears the "true conservatives" making a lot of noise, then they wield immense power.
Yet Nixon spoke of the "silent majority" which is a concept Republicans ought to familiarize themselves with.