Washington, May 20 -- President Donald Trump said Monday that Russia and Ukraine will "immediately" begin ceasefire negotiations after what he described as an "excellent" call with Russian President Vladimir Putin that lasted more than two hours. Trump also spoke with Ukrainian leader Volodymyr Zelensky and European leaders in hopes of making progress toward a ceasefire. He also said the Vatican expressed interest in hosting the negotiations, but there was no immediate confirmation that any talks had been scheduled.P13...