Despite being widely acknowledged as "Republican Lite," Lieberman enjoys a great advantage over his primary challenger Ned Lamont because of his long incumbency. However, I think it's time the Democrats of Connecticut decide the guy who felt getting a bj was an impeachable offense, and violating FISA wasn't, doesn't deserve to be sent back to Washington.

It sounds like Connecticut Democrats might be starting to agree.

Lieberman became Obama's mentor when Obama was sworn into the Senate in 2005. They stayed close at Thursday night's event, too, entering the room together and working the crowd in tandem.

Despite the camaraderie between the two, the crowd was clearly more receptive to Obama's remarks than Lieberman's speech about party unity and the potential for Democratic victories at the ballot box this fall.

In fact, scattered boos greeted Lieberman when he took the podium, and he had to stop three times during his remarks to shush the crowd so he could deliver key points.

Lieberman gets booed by Democrats and cheered by Republicans. Maybe that's a sign that he is a Republican.