Assuming he will run - which is still an issue - the guess here is that his percentage of the Jewish vote next year will be much less: somewhere in the 50s.
BTW, his reported 78% of the Jewish vote in 2008, though widely accepted by political gurus, was probably overstated by perhaps as much as 10 points because it was the product of statistically flawed polling techniques.
Gallup's poll results in general have tended to overstate the strength of Democrat politicians and policies because of sampling technique errors as well.
Jewish votes don’t really matter, except maybe in Florida. Jewish opinion leaders’ abandonment of Obama (but probably not Democrats in general) does give a green light for open criticism of Obama, which could influence other voters.
Thanks justiceseeker93.