"...until it gets stuck without enough voters to make the minimum cut... unless he joins Likud as a faction before the next elections."Hat tip:IMRA polls show that Barak really hasn't a chance to get elected on his own.
26  Likud
26  Kadima
14  Yisrael Beiteinu
10  Shas
08  Labor without Barak
02 [---] Ehud Barak Party
Bibi has been filling/stuffing Likud with all sorts of non-Likudniks to try to push out Moshe Feiglin's Manhigut Yehudit (Jewish Leadership) crowd and others who are more Right and pro-Land of Israel for Jews nationalist. That's one of the reasons they haven't been pulling ahead of Kadima in the polls. In actuality, Binyamin Netanyahu's Likud is just getting more and more similar to Kadima. His bringing in all the opportunists has diluted what little ideology the Likud MK's once had. There aren't too many Ruby Rivlins left in active Likud politics. He just adds some symbolic flavoring, rather than dominating that once ideological party.
Now don't forget that the numbers in this poll only add up to sixty-six (66) Knesset seats, unless my addition is off. That means that fifty-four (54) seats aren't listed. I'd be curious as to the predictions for the religious and Right. I'm also pretty sure that if Bibi adds Barak to Likud he'd lose more voters than he'd gain.