28. "Keith Kellogg is not a new person for Ukraine. The Embassy of Ukraine in the U.S. has maintained close ties with him, in particular within the framework of expert diplomacy in recent years, and has developed and maintained a good dialogue with him during this time,” Tykhyi told journalists in Kyiv. U.S. President-elect Donald Trump tapped Kellogg for Ukraine peace envoy on Nov. 27, proposing him as a person who potentially can lead negotiations on an end to Russia's full-scale war. "We welcome his nomination for this important mission," Tykhyi said.In June, Reuters reported that Kellogg and another Trump's top advisor, Frederick H. Fleitz, proposed a plan that would cease military aid to Ukraine unless it agreed to hold peace negotiations with Russia.The two also reportedly proposed to freeze the front lines in their current position and take Ukraine's NATO accession off the table.Kellogg, 80, previously served as the executive secretary and chief of staff of the U.S.