What can McCain do at tonight's debate?

I'll live-blog later, but for now, let's do some pre-debate speculating. I'm asking what McCain should do, not because I'm rooting for him, but because I think he's the one who needs to do something. Obama only needs to run out the clock, not make mistakes, be boring, etc., so it's not interesting to think of good advice for him. Let him be the fusty, phlegmatic professor. It doesn't matter.

But McCain may be looking at his last chance to make something happen. Now, I think the danger for him is trying too hard. My advice is: Act the way you would act if you knew for certain that you would lose.

First of all, he probably will lose, and he has an interest in his historical reputation. He shouldn't pull out all the stops, rave about Wright, or anything like that. I think he should be the upright and honorable man that he wants us to be remembered as. This isn't a devious ploy to make him give up. I think it's the best hope for getting us bond with him now.

UPDATE: Here I am saying essentially this in the Bloggingheads I recorded last night with Ana Marie Cox:



And watch the whole thing! It's pretty good. Topics:

Is playing dirty McCain’s only chance? (05:56)
How an election between men of ideas became a character contest (02:08)
Is McCain exploiting racism? (05:09)
Ann on why Palin is good for the country (02:17)
Should women be subject to military conscription? (08:41)
What McCain has to do in the final debate (08:04)