“In her book and in this last debate, she talked about getting the approval or the support or the mentoring of Henry Kissinger,” Sanders said. “Now I find it rather amazing because I happen to believe that Henry Kissinger was one of the most destructive secretaries of state in the modern history of this country."
Sanders continued: "I'm proud to say that Henry Kissinger is not my friend. I will not take advice from Henry Kissinger.”
“Well, I know journalists have asked who you do listen to on foreign policy and we have yet to know who that is,” Clinton responded.
“Well, it ain't Henry Kissinger, that's for sure,” Sanders shot back.
He also received the 1973 Nobel Peace Prize.
Speaking to reporters after the debate, Sanders campaign manager Jeff Weaver still wouldn’t say who advises the candidate on foreign policy but said, "we'll get you a list soon."
ABC News’ Mary Bruce contributed reporting.