I think not. It is one thing for the public to support Israel against Arabs/Muslims (enemy of my enemy, plus Israelis look more like me and worship a god close enough to mine). Dem/GOP positions on Israel will have, I think, not much effect when it comes to U.S elections, other than on the American Jewish vote.
For example, USA/Gallup found that 65% (of U.Sers) want the U.S to support neither side. Surprisingly, while a majority of U.Sers oppose U.S intervention (IIRC) they are instead in favour of our participation in an international force.
My guess is that the Democrats are (a) using this as a way to look muscular and criticize the GOP on its strength, (b) playing to their Jewish/Zionist base (Dershowitz-liberals).
--ravi
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