UNIAN: Zelensky says Donbas issue may be put to national referendum By UNIAN. Published May 20, 2021 at 4:49 pm Ukraine's president Volodymyr Zelensky speaks at the press conference marking his second year in office at the Antonov plant in Kyiv on May 20, 2021. Photo by Volodymyr Petrov Ukrainian President Volodymyr Zelensky says the issue of the situation in Donbas may be put up for a national referendum. Read more here.