U.S. Secretary of State Rex Tillerson arrives at DjiboutiÐAmbouli International Airport in Djibouti, Friday March 9, 2018. Tillerson says a "dramatic" and surprising change of posture by North Korean leader Kim Jong Un led U.S. President Donald Trump to agree to a meeting. (Jonathan Ernst/pool via AP)
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Tillerson: Trump tweets don't change policy
03:28 - Source: CNN