I don't think so.
But his support for Israel will get a higher proportion of the Jewish vote than any Republican in years, and perhaps have financial effects as well-- there are doubtless many liberal Jews who will unenthusiastically vote for Kerry, but keep their wallets closed.
One very promising trend is among young Jews-- there is a generational shift taking place, and Republicans will do very much better among them in decades to come.
-ccm
Good point. It seems that younger Jews and foreign born Jews tend to be more conservative.
However, just looking at the few Jewish neighborhood (zip codes) that I happen to know about in my limited experience, on fundrace.org and newsmeat.com...donations are strictly Kerry.