McLame (or should we call him "Luke Skywalker") has zero chance of making it past the first primary. Arizona FReepers should make sure he doesn't make it past his next Senate race.
The Arizona Republican Party does not listen to the grassroots, rank and file Republicans. The party leadership is beholden to the congressional delegation (which includes McCain) and the RNC. The grassroots was able to unseat a party player RINO, Mike Hellon, as national committeeman against much opposition from the party leadership and even from the dais at the state convention, but that's all we've been able to do so far. Going against McCain will be VERY unpopular with the state party apparatus. He receives 87% of his donations from out of state and can muster millions and millions of dollars for his next Senate race. Defeating that juggernaut is highly unlikely given the lay of the battlefield. However, there is talk of reinstating the Recall McCain effort to either get enough signatures for a recall vote or at least do him enough damage that his political survival is no longer ensured.