rome u.s. president donald trump policies gulf dangerous misguide iran foreign minister say thursday add pressure washington succeed strengthen tehran resolve speak conference rome foreign minister mohammad javad zarif criticize trump seek renegotiate 2015 deal aim curb iran nuclear program also question u.s. response crisis qatar neighbor problems policies come washington believe policies extremely dangerous impulsive ground reality zarif say generally revision reorientation cognitive adjustment region highly necessary washington say trump understand nature nuclear accord try dissuade foreign investors business iran spite arm twist european company come say zarif lead iran negotiate team nuclear deal face criticism hardliners home term accord say dissent fade past year unite state pressure fact create solidarity inside iran attack much less iran today trump elect thank zarif say trump say october would certify tehran comply 2015 deal warn might ultimately terminate accuse iran live spirit accord signatories agreement britain france germany russia china european union say believe iran live commitments trump 's gulf policies impulsive dangerous iranian minister