I have merged the two threads discussing this poll together.
Even though this polling company's reputation approaches that of the Star-Tribune, I am personally not surprised. McCain has been taking such a beating among Republicans (and others too) since this 2008 primary began that a decline in support for a potential re-election makes total sense. I too suspect he'll retire in 2010 myself.
Napolitano is also a strong opponent of amnesty, which allows her to use the issue as a wedge to draw conservative voters. (CARLHAYDEN loves her.)