Aas an explanation, I found this helpful (KENNETH J. BIALKIN):
Support for Obama from American Jews in the 2008 election was helped by several factors that will be absent from the 2010 elections: namely, disapproval of George W. Bush, opposition to the U.S. presence in Iraq, the McCain/Palin ticket, and excitement that America might elect a black president. Other factors that favored Obama in 2008 may yet persist in 2010, for example, Jewish liberal bias and traditional pro-Democrat drift. Recent polls of the Jewish community, however, reflect a clear decline of Jewish support from 2008. A Quinnipiac poll in April reported that 67 percent of Jews did not approve of Obama’s handling of Israel. Many Jews reacted with fury at the treatment accorded Israel’s prime minister in the Biden affair and to the demands of the administration for concessions on Jerusalem. Initially, many who had supported President Obama were hesitant to be critical, perhaps for fear that they would offend the president or risk their newfound access to the White House. Also, Jewish organizations whose constituents include both Democrats and Republicans were slow in finding a balance of words to describe the concern that had spread throughout the community. The president’s letter in April to a Jewish leader reaffirming U.S. support for Israel was a clear effort at damage control by the White House.
Sheesh - who taught you how to post?!