Joe Lieberman is picking up the mantle of the man who helped defeat him in 2000. Lieberman will be running in a general election against a Democrat, with the support of Republicans, in an effort that will split the Democratic vote.
Lieberman is the new Ralph Nader, with one big exception: Nader wasn't a Democrat, but Lieberman claims to be.
No, Lieberman is Nader 2.0, and Nader 2.0 is much more ugly than the original. Lieberman is rejecting the decision of the voters, and is willfully stabbing his claimed party in the back. Here I am, stuck in the middle with you.