One reason I've been arguing to Nate all week that McCain might need to pick a woman once Biden was picked is that while Biden has the ability to hit hard, would he hit a woman hard? And with specifically Palin, who is young and attractive, does it bait Biden into some kind of stray condescending comment about her youth and looks that would make many people furious, particularly women?
Call it the "gorgeous broad" mentality. Biden's got a bit of that Sinatra-ism, where he refers to his wife as "drop dead gorgeous" and it sounds like that's the way Biden most naturally expresses himself. But that's his wife. Biden can get away with that. With Palin, he might find himself giving a comment that in his mind sounds like a compliment, but comes out all wrong.
He also provides some strategic context for the "risk" McCain chose to take:
If McCain and Obama each consolidate their bases at the same percentages, Obama wins. There are now numerically more Democrats, and independents favor Obama. Before the conventions, McCain had moved past Obama, mostly because many women in Hillary Clinton's coalition had failed to warm to the Democratic nominee. Obama was stuck at 83% of his base and McCain had moved from a tie into 87% consolidation. Had this week's Denver convention not been as successful from a unity standpoint, McCain might not have needed as much to go for broke. If Obama secures his base, wins indies (as he's easily doing) and dominates in the ground game, game over for McCain. Demographically, the mountain is too steep to climb.
So what does McCain do? He picks a woman specifically to aim a wedge at the Obama base. It's a demographic pick - all about gaming the vote and little about governing. This is not the resume of a male candidate that would be acceptable. There is a small but legitimate chance Joe Biden will say something that can be used to call the Obama ticket a sexist one. Biden, of course, will and should be coached to restrain any such "stray comment" impulse in which he is wont to indulge.
But even if Biden (or anyone else) doesn't take the bait by dismissing her in a condescendingly sexist way, putting a woman on the ticket may give other Democratic women who don't want to vote for Obama a real reason to cross over. People aren't as undecided when it comes to politics as they claim, a recent study argues. They just haven't found an articulable reason to capture their decision. If some Democratic women don't really want to vote for Obama, identity politics may provide them with an affirmative, articulable reason to do so. McCain is old, and Palin could very easily become the next president by default.
I don't think it gives anything away to admit the truth of what I bolded here. After all, isn't it worth a little cynical politicking to save the country from the (possibly Muslim) socialism to which Comrade Obama is hell-bent on subjecting us?