James Fallows
http://jamesfallows.theatlantic.com/archives/2008/09/on_strategy_and_tactics.php(snip)
Everything John McCain did on stage last night was consistent with trying to score tactical points in those 90 minutes. He belittled Obama with the repeated "he doesn't understand"s; he was explicitly insulting to him in saying at the end "I honestly don't believe that Senator Obama has the knowledge or experience" for the job (a line Joe Biden dare not use so bluntly on Sarah Palin); and implicitly he was shockingly rude and dismissive in refusing ever to look Obama in the eye. Points scored -- in the short term, to the cheers of those already on his side.
Obama would have pleased his base better if he had fought back more harshly in those 90 minutes -- cutting McCain off, delivering a similarly harsh closing judgment, using comparably hostile body language, and in general acting more like a combative House of Commons debater. Those would have been effective tactics minute by minute.
But Obama either figured out, or instinctively understood, that the real battle was to make himself seem comfortable, reasonable, responsible, well-versed, and in all ways "safe" and non-outsiderish to the audience just making up its mind about him. (And yes, of course, his being a young black man challenging an older white man complicated everything he did and said, which is why his most wittily aggressive debate performance was against another black man, Alan Keyes, in his 2004 Senate race.) The evidence of the polls suggests that he achieved exactly this strategic goal. He was the more "likeable," the more knowledgeable, the more temperate, etc. Update: though he doesn't have to say "John is right..." ever again during this campaign.
For years and years, Democrats have wondered how their candidates could "win" the debates on logical points -- that is, tactics -- but lose the larger struggle because these seemed too aggressive, supercilious, cold-blooded, or whatever. To put it in tactical/strategic terms, Democrats have gotten used to winning battles and losing wars. Last night, the Democratic candidate showed a far keener grasp of this distinction than did the Republican who accused him of not understanding it.