about. so there's a way of sort of snaking through this that might work but we can't prematurely go to military tit for tat, got to work the allies and find out what our instincts will be. >> joe biden saying it is a self-inflicting disaster bringing up jcpoa, the nuclear deal president trump pulled out of president trump, joe biden said, promised to abandon the deal and opposing sanctions would stop iran's aggression but they have only gotten more aggressive. do you, general clark, trace this all back to that moment, the president's position, on that nuclear deal? >> i think when president trump pulled out of the deal that he did two things. first of all, he set in motion something that put us at odds with european allies and with others who helped us negotiate the agreement. and he put iran under pressure. iran didn't want to get out of the agreement. they liked the agreement.