CSIS Korea Chair: “We shouldn’t have somebody else negotiating the peace treaty”

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During his meeting with Japan’s Prime Minister at Mar-a-Lago, President Trump said “subject to a deal,” North and South Korea had his blessing to discuss the end of the war. Former Director for Asian Affairs at the White House National Security Council Victor Cha, now an MSNBC and NBC News contributor, tells Ali Velshi the reasons why it’s so crucial for the U.S. to lead peace negotiations in the Korean Peninsula.