On Dan Baum's Assumptions About Lieberman

A Goldblog reader writes:

Your prior reader thought it was uncontroversial that Baum "assumed Lieberman listens to Jews."  What? First of all, when did Lieberman become the Senator of the Jews?  I'm very excited about the constitutional provision that apparently grants us representation in the senate, but I must have missed its enactment.

Second, where is there any evidence that Lieberman listens to Jews?  American Jews largely opposed the Iraq war and overwhelmingly supported Obama (and the Democratic party, for that matter).  Why would Lieberman start listening to the Jews now?