Lt. Gen. Keith Kellogg, special envoy to Russia and Ukraine, joins ‘America’s Newsroom’ to discuss the limited ceasefire agreement in the Black Sea, though President Zelenskyy remains cautious. Lt. Gen. Keith Kellogg, special envoy to Russia and Ukraine, joins ‘America’s Newsroom’ to discuss the limited ceasefire agreement in the Black Sea, though President Zelenskyy remains cautious.