Via kos, Ambinder has this report from CBS5 in Arizona about trouble brewing for McCain in his home state. (Not sure about the "(Ja?)net for 2006" signs!)
So once again, allow me to push Arizona Governor Janet Napolitano for the Democratic Vice-Presidential slot.  She was re-elected with a 63-35 margin, so she's popular in AZ for sure...  As I wrote on my blog earlier (follow the "push" link above):

"Of course, Senator McCain's from Arizona as well. But that's precisely the point - the sheer audacity of the pick would show that the Democrats are taking the fight to Senator McCain's homeground. With Arizonians on both major party tickets, there's less of a "favorite progeny" factor. Senator McCain would have to spend time and money defending a "given" state, further stretching his resources (considerably lower, for sure, than Senator Obama's). And IMHO, that's a good compelling reason to have a Democratic VP pick who happens to be a woman not named Clinton."

And might I add - maybe that would make McCain blow his fuse in public ;-)