JTA — A disagreement over how to define the sources of rising antisemitism in Europe escalated into a public clash this week between two prominent Jewish leaders, with tech billionaire Elon Musk intervening to back the US government’s antisemitism envoy over a prominent European rabbi. The dispute centers on remarks made Wednesday at the World Economic Forum by Rabbi Pinchas Goldschmidt, the president of the Conference of European Rabbis, during a panel discussion on antisemitism, extremism and social cohesion. Responding to a question about the surge of antisemitism in Germany and beyond, Goldschmidt said the October 7, 2023, Hamas-led attack...