The dems NEED the jewish vote. If LIEBerman is defeated because of his support for the WOT, then the jewish vote may abandon the democrats.
The MSM would rather have Lamont but they know the unintended consequences may hurt their party.
If history is any guide, I doubt it. I don't think they look at this in religious terms. Lieberman is for the Iraq war. He has not recanted. You have many high profile Jews against Lieberman including Barbara Streisand and Soros. The Dems will still continue to garner 75% of the Jewish vote.