washington president donald trump lay confrontational strategy toward iran unite state friday speech likely strike blow international iran nuclear deal complicate u.s. relations european ally u.s. officials say trump expect announce certify 2015 iran nuclear deal believe agreement national interest unite state certify twice aid say reluctant third time trump could last minute change heart outline administration new approach toward iran speech white house 12:45 p.m. edt 1645 gmt friday step would withdraw unite state deal would give u.s. congress 60 days decide whether reimpose sanction tehran suspend agreement negotiate unite state world power administration former president barack obama international inspectors say iran technical compliance accord trump say tehran violation spirit agreement do nothing rein ballistic missile program financial military support hezbollah extremist group white house chief staff john kelly say u.s. approach toward iran work ally middle east contain tehran activities footprints grind naval air force demonstrate resolve friendship try deter anything country may kelly say european ally warn split unite state issue week trump hear appeal british prime minister theresa may french president emmanuel macron unite state certify deal sake ally unity imperative europe stick together issue german foreign minister sigmar gabriel tell rnd german newspaper group also tell americans behavior iran issue drive us europeans common position russia china usa sign unite state britain france germany russia china european union iran deal lift sanction tehran exchange curb nuclear program trump call accord embarrassment bad deal ever european officials categorically rule renegotiate deal say share trump concern iran destabilize influence middle east threat new action washington prompt public display unity rival factions among iran rulers cia director mike pompeo thursday keep steady drumbeat trump administration criticism iran say tehran mount ruthless drive hegemonic power region iran intelligence service islamic revolutionary guard corps cudgel despotic theocracy irgc accountable supreme leader vanguard pernicious empire expand power influence across middle east pompeo say remark university texas austin tampa florida head u.s. central command say concern iran long-term activities region would continue focus protect u.s. troop even iran say u.s. regional military base would risk sanction pass iran kind long-term destabilize actor region remain concern activities well u.s. general joseph votel tell reporters trump lay new iran strategy friday complicate european tie