U.S. President Donald Trump has issued an expletive-filled threat to escalate strikes on Iran if it doesn’t open the Strait of Hormuz by his Tuesday deadline. It follows the U.S. rescue of an aviator whose plane was downed by Iran. Trump on Sunday promised strikes on Iran’s power plants and bridges. Mac McCorkle, from the Duke University Sanford School of Public Policy, joined Jeff Hamlin to discuss the latest in Iran.