CNN  —  The United States wants to hear what concessions Ukraine would be willing to make in negotiations to end the war with Russia , US Secretary of State Marco Rubio said ahead of a high-stakes meeting between the two nations on Tuesday. “We really want to sort of ascertain where they stand on this and what they’re willing to do in order to achieve peace,” Rubio told reporters on Monday. The discussions in the Saudi port city of Jeddah comes as the relationship between Washington and Kyiv is