At 72 years of age, John McCain is at the age when politicians start to think about calling it quits. While it’s true that some will serve well into their 80s - and in some cases even their 90s - 72 isn’t a number for spring chickens. When he comes up for reelection again, he’ll be 74 years old. When that term expires, he’ll be 80.
If McCain does decide to run, he's got a very hard fight ahead of him. In a just released Rasmussen (I know, I know) poll, McCain leads by only 2% points against an, as yet, unannounced conservative talk radio show host, JD Hayworth.
Arizona Senate GOP Primary
John McCain 45%
J.D. Hayworth 43%
Chris Simcox 4%
Some other candidate 2%
Not sure 7%
Hayworth, a conservative former U.S. congressman who now is a popular radio talk show host in Phoenix, is reportedly interested in the race but has not formally declared for it. He captures 59% of the male GOP vote, while McCain wins 58% of female voters.
Given the blood thirstiness of the teabagging contingent, it's likely that Hayworth could be Arizona's Hoffman to McCain's Scozzafava. Unlike NY-23, Janet Napolitano is well known and well liked.
Arizona Governor Janet Napolitano will be term limited, and with her strong approval ratings and popularity statewide, she’d pose a significant threat to McCain [*or Hayworth]. Napolitano was reelected to a second term by a 16 point margin, powering to a 63% - 35% win over her Republican challenger in 2006. Source
As ROGNM correctly points out, Napolitano is the Secretary of Homeland Security. Article is from last year.