Due to our electoral college the Jewish vote gave 0bama his margin of victory in ZERO states in 2008.
So Jewish vote for him was 78% but at least Jewish voters gave him no state victories. Presidential elections are won state by state (obviously)
When you say "Jewish voters gave him no state victories," the only state I would quibble with is Florida. But even if Florida had gone to McCain, O would still have won the Electoral College without a sweat.