From NBC's Domenico Montanaro
We mentioned in First Thoughts that Clinton will pick up a Pennsylvania superdelegate tonight when she speaks at the Allegheny County J-J Dinner. The Obama campaign then released a new superdelegate of their own, Utah Democratic Party Chair Wayne Holland. Holland had been thought to be leaning Obama, but had not said so publicly.
This brings the superdelegate count to Clinton 257, Obama 226. In the overall count, Obama leads by 133 (1,642 to 1,509). He has a 164 pledged-delegate lead (1,416 to 1,252).