There weren't 85% of Jewish voters who voted for Obama in '08. The highest number I saw - and just about all of them were overestimates, when you consider who did the polling - was 78%. The guess here is that the REAL NUMBER was about 70%.
This year the guess is he won't top 60%. Remember that this heckling was from a subgroup of Jews which the 'Rats think they own, which is why they chose that particular synagogue to begin with.
Then you had better look again because it was much, much higher than a mere 70%.