Ukraine's Zelenskyy warns President Trump ahead of meeting with Putin

President Trump had a virtual call Wednesday with Ukrainian President Volodymyr Zelenskyy and other European allies ahead of Mr. Trump's meeting with Russian President Vladimir Putin on Friday in Alaska. After the call, Zelenskyy said he told Mr. Trump that "Putin is bluffing" and that he "is trying to apply pressure before the meeting in Alaska along all parts of the Ukrainian front."