Rubio: U.S. Will Keep Imposing "Devastating" Costs On Iran

(Paris) -- Secretary of State Marco Rubio is doubling down on economic pressure against Tehran. Speaking from the G7 summit in Paris today, Rubio said the U.S. will keep imposing "devastating" economic costs on Iran. He went on to call Iran's leaders "lunatics" and said their peace demands "outrageous and ridiculous." Rubio said the U.S. will be prepared for diplomacy if Iran's demands change. He added Washington has options beyond resuming strikes or caving to Tehran.