NEW: First Lady Melania Trump hosts Russian and Ukrainian delegations after helping broker a localized ceasefire in Oleshky and the surrounding Kherson region,

NEW: First Lady Melania Trump hosts Russian and Ukrainian delegations after helping broker a localized ceasefire in Oleshky and the surrounding Kherson region, aimed at allowing humanitarian aid to enter and civilians to evacuate safely. During the meeting, Russian presidential envoy Kirill Dmitrie…