No, we don't.
He is still in the Senate.
Let's look ahead a bit. Specter is a louse, but he's our louse. We don't have a big enough majority to toss him and let him drag Snow, Chaffey, Hagle, Collins and the other "moderates". Specter has given a pledge to support the nominees of the WH. The President and Rove are willing to work with Specter so should we.
We can't kick him out of the Senate and what if the 4 or 5 other moderates decide they don't like how Specter is treated? What if they then decide to make trouble?
We do not have enough power to go on a witch-burning spree right now.