His remarks on Sunday were preceded by King Salman, who told dozens of Muslim leaders that the regime in Tehran “represents the tip of the spear of global terrorism.” Trump followed up with equally harsh language, saying that “all nations of conscience must work together to isolate” Iran. He also offered no criticism of the Saudi-led war in Yemen, which has seen high civilian casualties and precipitated a food shortage that has left millions of people in danger of starving to death.