U.S. Secretary of State Marco Rubio said Sunday he felt "very optimistic" following a day of talks in Geneva with Ukrainian and European officials on a plan to end the war in Ukraine.
"I think we made a tremendous amount of progress," he told reporters at the U.S. mission in Geneva, adding: "We've really moved forward, so I feel very optimistic that we're going to get there in a very reasonable period of time, very soon."
Rubio added that delegations had broken off to refine proposals aimed at narrowing remaining gaps. "We're working through making some changes, some adjustments, in the hopes of furthering narrowing the differences and getting closer to something that both Ukraine and obviously the United States are very comfortable with," he said.
"Obviously, this will ultimately have to be signed off of our presidents, although I feel very comfortable about that happening," he said, adding that the U.S. also has "substantial insights" into Russia's priorities.
Ukraine's presidential chief of staff Andriy Yermak, for his part, confirmed the positive momentum.
