The Israeli election is a referendum on the withdrawal from more territory in the face of Hamas' genocidal plans. A "yes" vote could be cast for either Kadima or Labor with no distinction whatsoever. An effective "no" vote in the complex coalition system, however, requires extraordinary game theory powers. Fortunately,
Evelyn Gordon, Israel's finest political analyst, has put her Princeton Physics education to good use in this excellent, although arguable, piece (for Israelis only):
The upcoming elections are clearly crucial for anyone who opposes another unilateral withdrawal. Yet not any vote for a rightist party is an equally effective vote against withdrawal. In fact, anyone serious about preventing the pullout has only one realistic option: Likud.
There are several reasons for this. First, the only surefire way to prevent the withdrawal is if the Likud rather than Kadima forms the next government, and that requires the Likud to win enough seats to be a viable candidate....
Second, even if Kadima forms the government, some of its likely coalition partners, such as Shas, might still be persuaded to oppose the pullout itself....
Purists, of course, also have another argument: the Likud must be punished for the disengagement. That, however, is patently ridiculous: Since most pullout supporters have quit Likud for Kadima, "punishing the Likud" actually means punishing the very MKs who opposed the withdrawal!
Update: Her prediction about the UTJ party has apparently already come true:
Hareidi UTJ Party Hints: We Will Join Kadima Government
Here's my election prediction: the conventional wisdom, confirmed in every poll, is wrong. Kadima's poll numbers are inflated. This is my most speculative prediction so far because I have no real evidence. The logic, however, suddenly hit me. Israelis
Tracked: Mar 28, 15:48
Today Israel is voting in what appears to be its most consequential election ever. Should Israel respond to the Hamas victory with another unilateral pullout, from the strategic high ground of the West Bank, as Ehud Olmert's Kadima has made obvious hints
Tracked: Mar 28, 19:34