Trump’s Clash With Merz Shows It’s Hard to Stay Friends With the President

Throughout the war in Iran, Friedrich Merz, the German chancellor, did all he could to keep President Trump happy. This week, Mr. Merz appeared to lose patience.Chancellor Friedrich Merz in Berlin on Monday. He told a group of German students that the Iranian government had “humiliated” America with its slow-walk approach to negotiating an end to the war.