"It's definitely a moment of frustration," he said. "A lot of the messaging that Jews have gotten over the last four years ... is you've got to show up. You have to be an ally. You have to speak up for others. And I think a lot of Jews, myself included, very much took that to heart," marching in support of women's and immigrant rights, and the Black Lives Matter movement. But recently, he says, reciprocity has been hard to find. "I don't think that the general population, and progressives included among that, have a good understanding of what they're looking at when antisemitic violence doesn't have a swastika attached to it," Zeldin said. He says people find it easier to see and condemn antisemitism when it involves white supremacists chanting "Jews will not replace us," as they did in the August 2017 Unite the Right rally in Charlottesville, Va. Or when a gunman opened fire in a synagogue in Pittsburgh, Pa. on Oct. 27, 2018, and killed 11 worshipers, because he believed a conspiracy theory that claims Jews are helping immigrants resettle in America in order to make the country less white.