Trump's optimism about talks to end the Iran war has been tempered by denials from Tehran, and violence that continues to keep the Strait of Hormuz gridlocked.
President Trump claims the U.S. is talking to what he calls a "top person" in Iran, but a senior Iranian official says no formal talks are underway but that Iran is reviewing points sent by the U.S. through a mediator. Ed O'Keefe reports.