Tensions between Israel and Iran have escalated dramatically over the past week, with airstrikes, missile attacks, casualties and heated words back and forth sparking fear of a potential war. Now, U.S. President Donald Trump is demanding Iran's surrender. Ralph Nurnberger, former foreign policy assistant, member of the Senate Foreign Relations Committee, Georgetown University professor and senior fellow at the Centre for Strategic and International Studies, joins Evan to break down the latest developments in the conflict.