My friend, I was being sarcastic. Lieberman is not a moderate. Lieberman is very predictable. Lieberman is a balls to the wall liberal. Lieberman's ACU rating for 2003 and 2004 was zero.
Can't get more predictable and liberal than that.
Not sure you're right. He is a Demorat, to be sure, but I get the feeling he's not happy with his Party. He may still entertain some aspirations of leadership within his Party, but his position on several issues is more moderate than most of his colleagues'.
I still feel that someday he'll switch Parties.