Lieberman will have four more years until he comes up for re-election.  Having alienated Democrats statewide, he knows that his reelection is precarious -- he might not even win the nomination of his own "Lieberman" party in CT.  The Democrats should dump him and let him know that if he wants to have any leadership place in the party, perhaps in his last two years in the Senate, he needs to show his bona fides by voting like a real Democrat.  An ostracized Lieberman could actually be a more reliable ally than one that is coddled.