Affirmative action's failure (at least in law schools)

The Weekly Standard has an article summarizing the findings of Richard Sander, a law professor at UCLA, on the failure of affirmative action in law schools to benefit those it was designed to help. Sander, who is a social liberal on most issues, studied only the effects of affirmative action on those it was designed to help--not on those who might have been passed over for a minority. His conclusions seem to make so much intuitive sense that it's amazing how people want to seemingly automatically reject them.