Right, and that's my point. Estrich is plugged in pretty high in the national Democrat organization. I think you're seeing the test market for the Democrat's next position on Sheehan. She is starting to become a liability, so Democrats from top to bottom will start trying to shake her off like gum stuck to their shoes. The Robertson gambit failed because Republicans and/or conservatives refused to come to his rescue and stand by his remarks. If what Estrich is doing fails, you may even hear Howie Dean start making anti-Sheehan noises.
The more the public learns of Sheehan, the less they like her. Look behind what Estrich is selling. Sheehan's remarks weren't all that anti-semitic. They were stridently anti-Israel, though. With the recent events in Gaza, American Jews are very sensitive to anti-Israeli sentiment just now. That's a liability Democrat's can't afford, especially since polling indicates Jews are leaving them in droves because of their pro-Palestinian, anti-Israel positions.