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Sullivan: 'We need to bridge' gaps for Gaza cease-fire
9m 44s
Ukrainian President Zelenskyy's top aide pronounced the peace conference this past weekend a success. It was derided just as quickly as ineffectual by the Kremlin. More than 90 nations attended the conference in the Swiss Alps. Nick Schifrin sat down with U.S. National Security Adviser Jake Sullivan to discuss the wars in Ukraine and Gaza.