f she's dim and Obama is brilliant, how did he lose the argument to her?

How indeed? Emphasis added. [Link]

One can hardly deny that Palin's reference to "death panels" was inflammatory. But another way of putting that is that it was vivid and attention-getting. Level-headed liberal commentators who favor more government in health care, including Slate's Mickey Kaus and the Washington Post's Charles Lane, have argued that the end-of-life provision in the bill is problematic--acknowledging in effect (and, in Kaus's case, in so many words) that Palin had a point.

If you believe the media, Sarah Palin is a mediocre intellect, if even that, while President Obama is brilliant. So how did she manage to best him in this debate? Part of the explanation is that disdain for Palin reflects intellectual snobbery more than actual intellect. Still, Obama's critics, in contrast with Palin's, do not deny the president's intellectual aptitude. Intelligence, however, does not make one immune from hubris.

Bongo! We have a winner.