The president said he has a "deadline" in mind for talks to make progress, though he did not say what it was. Trump administration officials say they had initially hoped to have secured a negotiated settlement before the 100th day of the president's second term next Tuesday, but that that goal now seems like a pipedream.

The Kremlin said it reserves the right to use nuclear weapons if it faces aggression by Western countries. Overnight, Moscow attacked Kyiv, killing at least eight people.