Foreign subsidiaries of U.S. companies have six months to leave Iran, according to U.S. government guidance released alongside President Donald Trump’s decision Tuesday to exit the nuclear agreement. The Iran agreement lifted some U.S. and international sanctions in exchange for Tehran freezing its nuclear program but Mr, Trump called it “defective at its core” during his remarks Tuesday. International watchdogs, European allies and others have said Iran was complying with its end of the deal. Read more.