Kagan: 41% favorable, 47% unfavorable.

Why? She's the President's pick, an apparently highly competent and amiable person, and she's not on record with much of anything specific. Why the hostility?

By comparison, the president’s first Supreme Court nominee, Sonia Sotomayor, maintained favorables around 50% through the first three surveys following her selection, with unfavorables falling to 40%.

Maybe it's just that Obama himself has gotten less popular.