Well, sort of.
To give a bit of background, Jews, Italians, and the Irish traditionally voted Democrat because they primarily lived in cities where the Democratic party machine was alive and well (ie New York, Boston, Chicago). The party machine traded votes for social services, and courted immigrants pretty heavily. Additionally, the single greatest determining factor of the way a person will vote is, believe it or not, the way that their parents vote. So, if you follow that reasoning, populations that traditionally lived in big cities, whether or not they continue to do so, will vote Democrat, because their parents/grandparents/great-grandparents did. It takes a lot for a population as a whole to shift their votes to another party.
Ok, history lesson over. It is pretty clear that a lot of Jewish bloggers vote Dem. Or support the Dems, or at the very least, oppose the Republicans. To name a few: Smeliana, David Kelsey, Mobius, everyone at Jvoices, most of Jewschool, and probably a good number at Jewlicious. I'd even be willing to bet that Esther K votes Dem. Not to mention the ever-outspoken Dovbear.
However, according to Daled Amos, although Jews tend to vote Dem as a whole, he points out an issue in the polling process. He says, "the CNN exit poll treats the Jewish vote as monolithic--it does not take into account the difference in attitude towards Israel between those Jews who are more religious and those who are less religious." Yet it does not do so with Christians, dividing them up by church attendence, evangelicalism, or lack thereof, and race. He goes on to suggest that if Jews were polled in the same way that the numbers would mirror those for Christians, with the more traditionally observant tending to vote more right.
Robert Avrech of Seraphic Secret wears his Republican views on his sleeve, a practice of which I am actually fond (as I may have mentioned earlier, I prefer to know someone's bias). He discusses the statistics that Daled Amos appears to be looking for, saying that the RJC (Republican Jewish Coalition) found that "just as in the larger population, the more a voter attends religious services, the more likely he or she is to vote Republican. Among those who attend synagogue almost every day, 35.2% voted Republican. Among those who attend once a week, 31.8% voted Republican. And among occasional attendees, 23.1% voted Republican."
While the trend remains the same, the numbers are a bit different. Let's compare:
Jews who attend synagogue every day: 35.2% Republican
Christians who go to church more than weekly: 60% Republican
Jews who occasionally attend synagogue: 23.1% Republican
Christians who occasionally attend church: 39% Republican
Just something to keep in mind.