A poll showed American Jews are much likelier than non-Jews to back the Iran nuclear deal.The Los Angeles Jewish Journal poll published Thursday shows 49 percent of American Jews support the deal and 31 percent oppose it. Among all Americans, 28 percent support the deal and 24 percent oppose it.Similarly, 53 percent of Jewish Americans polled want Congress to allow the deal to go ahead, while 35 percent want Congress to stop the deal. Among all Americans, the numbers are 41 percent wanting Congress to allow the deal and 38 percent supporting Congress should it kill the deal.Congress has two months to consider whether to exercise its power to disapprove of the sanctions relief for nuclear restrictions deal reached July 14 between Iran and the major powers, including the United States.The poll by SSRS was conducted by phone between July 16 and July 20. It canvassed 505 non-Jews and 501 Jews. SSRS did not give a margin of error.