denuclearization and i think it is on track. arthel: on track. okay, let's talk about iran. should the present me with iranian leadership and what is the likelihood of a sideline meeting between the president trump and present rouhani? >> iran, what a question! president trump has said all along, that he is willing to meet with any world leader if the talks can be constructive. so i assume it means he would meet with president rouhani. he would presumably meet with the supreme leader ayatollah if he were there. but that said, i do not expect it will happen. i do not see either the gentleman and iran wanting to want to talk to trump or the basis for cooperative action. now, there is strong back channel communication. probably through a european intermediary because the european is pulling out of iran and i think the sanctions and