On The Posner Show, Sarah and Brent consider the question: Is liberal Zionism dead? They debate whether the latest Gaza war is a turning point in American Jewish attitudes towards Israel. They discuss the rise of dissenting pro-Israel groups like #IfNotNow that are challenging the American Jewish establishment, and even challenging the more liberal group J Street. Brent argues these groups will force change in the American Jewish establishment, but that it will be gradual. Plus: What about American rabbis?