President Trump claims Israel and Iran have agreed to a ceasefire, just hours after Iran retaliates with strikes on a key U.S. air base in Qatar. Then, what continued hostilities would mean for the oil market. And Trump floats the idea of regime change in Tehran. Susan Glasser, Dave Weigel, General Barry McCaffrey, Justin Wolfers, Bharat Ramamurti, Caroline Modarressy-Tehrani and Heather Cox Richardson join The 11th Hour