Iran vows 'firm response' unless Obama stops sanctions renewal Iranian President Hassan Rouhani demanded on Sunday that Barack Obama block an extension of sanctions passed by the U.S. Congress, saying Tehran would otherwise "firmly respond".

Iranian President Hassan Rouhani demanded on Sunday that Barack Obama block an extension of sanctions passed by the U.S. Congress, saying Tehran would otherwise "firmly respond". Iran vows 'firm response' unless Obama stops sanctions renewal Iran President threatens the US.