mOSCOW, Aug. 8 -- Russian President Vladimir Putin said on Thursday that he hopes to meet US President Donald Trump next week, possibly in the United Arab Emirates, although a White House official cast doubt on the summit occurring unless the Kremlin leader also agreed to a meeting with Ukrainian President Volodymyr Zelensky. Putin's announcement came on the eve of a White House deadline for Moscow to show progress towards ending the war in Ukraine or suffer additional economic sanctions. The US was still expected to impose those sanctions on Friday on Russia. The official said a US-Russian summit would not happen if Putin does not agree to meet with Zelensky.P12...