Because journalists and people on TV have been focusing exclusively on Sarah Palin for more than a month now. The people familiar with Senator Joe Biden are the people already inclined to vote for him. The uninformed just-now-paying-attention "undecideds" who tuned in last night were introduced to this smart, reassuring guy. And the Obama campaign debate strategy is reassurance—don't worry, you don't need to vote for the old white guy, we do know what we're doing. It's brilliant and it worked as well as ever last night. (Also his FUCKING FAMILY DIED.) To sum up, we were right. (Also the best part of CNN's coverage last night was the ladies maxing out on approval for Biden in his opening statement until the shot switched to a view of his bald spot and terrible plugs, at which point support of undecided women plummeted.)