Jake Sullivan, a former advisor to President Barack Obama, discusses the delicacy of the policy-making process. Sullivan explains his involvement in the Iran nuclear deal and the often hard-to-discern, real-world consequences of implementing new policies across the globe.

"Somebody can always come along and say you could have gotten a better deal and you have [to be] prepared to look people in the eye and say, 'I believe this is a good deal and it's as good as we are going to do right now.'"

About Jake Sullivan

Deal Reached on Iran Nuclear Program; Limits on Fuel Would Lessen With Time, Hillary Clinton's secret Iran man, Secret Iran Talks with Jake Sullivan,