There are no current Democrats (ignore Lieberman) who carry such warm feeling from the Jewish community.
As I wrote above, G W Bush staying on course can rewrite the book. Jews can and will shift right. That will leave the Democrats even more radicalized and insignificant. It could be a sea change in American politics.
Having said that, in Orange county, California about 5 years ago, a poll showed that there was not much difference in ideology between Wasps, Catholics and Jews. I don't know if that still obtains, as the Jewish percentage grows (Orange County doesn't have "Jewish" precincts per se, but they might be 5% or so of the population now).