The Anti-Defamation League is up in arms over two South Carolina Republicans’ revival of an old stereotype. Peter Beinart asks: Is calling Jews thrifty really so offensive? This week, in an act of vicious anti-Semitism, Edwin O. Merwin Jr. and James S. Ulmer, chairmen of the Bamberg County and Orangeburg County, South Carolina, Republican parties, respectively, co-authored an op-ed in which they accused Jews of taking good care of their money. “Jews who are wealthy,” they wrote, “got that way not by watching dollars but instead by taking care of the pennies and the dollars taking care of themselves.” Then...