he didn t even know the official responsible for one of his administration s top priorities. i didn t speak to him. reporter: as the president is turning up the heat on tehran one day after announcing new sanctions targeting iran s supreme leader. asked if he has an exit strategy, he claims he doesn t have one. you re not going need exit strategies. reporter: he offered plans for a counter strike, his threats of using military force haven t lost their punch. are they taking your threats? i think everybody does. i think you do too. good-bye. reporter: trump filling a critical posting in the west wing tonight naming stephanie grisham as the new press secretary and communications director. receivestephanie has been wi since the beginning.