Romney Fundraises in McCain's Home State

The AP is reporting that Gov Romney was fundraising for his political committee (I assume The Commonwealthpath PAC) yesterday in Arizona. The article goes onto to speculate about a potential brewing rivalry between McCAin and Romney. It seems as though the rivalry at this point is only between the respective candidate's staffs.

Relevent graph:

It is McCain whom Romney singled out when the governor announced in December he would not seek a second term this year. Unlike the senator, who once joked he thought about being president "every day in the shower," Romney said
his interest was more like the movie "Star Wars:" "It's in a galaxy far, far away."

My note: If Romney develops an even mild rilvarly, intentionally or not, with Senator McCain, this could help him immensely. There is a lot of resentment, and feelings of betrayel by those in the party w.r.t. John McCain. And becoming his rival could very well garner Romney support.