Rubio laid responsibility on both Russia and Ukraine for refusing to make enough concessions for a ceasefire. “Both sides are going to have to give up something in order to get to the table, in order to make this happen. That’s — that’s just the way it is,” Rubio said.

The president of Ukraine and his European allies are to visit the White House on Monday, after President Trump backed Russia’s plan to end the war.

U.S. President Donald Trump said he and Russian President Vladimir Putin did not reach a deal to end Russia’s war in Ukraine after talks in Alaska on Friday, as the two leaders offered scant details on what was discussed but heaped praise on one another.