[Valin]

Why is that?

Do you have a year or two? :-)
I'd say it comes down to the Jews being a minority and an underdog(where ever they are). And the "perception" that democrats and the left in general will support and defend them.

[Consort]

And the "perception" that democrats and the left in general will support and defend them.

Yes, it's the same reason why African Americans support the party of slavery. Besides, the GOP does not effectively communicate across social, religious, cultural, etc lines. Bush is a rare exception, but one person alone can't do it all and a segment of the GOP doesn't want to do it. There is a strong negative perception that GOP is for bigots and religious zealots only.

[Tamar1973]

And the "perception" that democrats and the left in general will support and defend them(Jews).

The only problem with that is that the demoRATS see the palestinians as the underdogs, not Israel.