Trump sounded positive on Monday as he met with Ukrainian President Volodymyr Zelenskyy and European leaders at the White House, just two days after his summit with Russia's Vladimir Putin in Alaska. "I think President Putin will make peace. I think President Zelenskyy will make peace. We'll see if they can get along," Trump said.

If Putin rejects a bilateral summit with Ukraine’s leader, the U.S. should take strong measures, Zelensky said. Russia said much needs to be worked out before a meeting is possible.