McCain outbursts — crotchety old man?

If Andrea Mitchell et al want to argue that Dr. Nice is being bamboozled by campaign aides because he’s “out of it,” that leaves open the question of WHY is he “out of it”?

Let's say, for the sake of argument, that Mitchell is right, on Hardball, then the reason he's "out of it" is most likely the age issue.

Now, unlike McCain raising issues directly against Obama, which Joe Klein noted was strategically stupid, Obama (should he raise this issue) would surely have the brains to do it through surrogates.

Question is... since oldsters have a high voter turnout AND since Florida is a big swing state... do you raise it? If so, how gingerly?