Edited sentence: " Barron rejected Greenfield's accusation, stating that Greenfield was "a coward" and was doing this for "the Jewish lobby." Barron responded the attacks were an effort to derail his Congressional campaign and a distraction from what matters to his prospective constituents.At that gathering Greenfield accused Barron of being the "David Duke" of New York City, and Nadler said Barron's statements about Israel had created questions about his character, and stated that there is no excuse for "demagoguery, racism and anti-Semitism.Barron has been attacked by many Jewish groups and politicians, including, in a June 2012 gathering, former New York mayor Ed Koch, Congressman Jerrold Nadler, Councilman Greenfield, state Assemblyman Dov Hikind, and state Representative Steve Israel.New York Council member David Greenfield attacked Barron for making an "absurd comparison of Gaza to Nazi concentration camps," adding that "Barron proves once again that he is an anti-Semite and racist of the highest order