Ukrainian President Volodymyr Zelenskyy says Russia’s seige of Mariupol could scuttle any attempts to negotiate an end to the warBy The Associated PressApril 16, 2022, 9:32 PM• 14 min readKVIV, Ukraine — Ukrainian President Volodymyr Zelenskyy told Ukrainian media that the continuing siege of Mariupol could scuttle any attempts to find a negotiated end to…