(250228) -- WASHINGTON, Feb. 28, 2025 (Xinhua) -- U.S. President Donald Trump (C) welcomes Ukrainian President Volodymyr Zelensky (R) at the White House in Washington, D.C., the United States, on Feb. 28, 2025. A press conference at the White House scheduled for Friday where U.S. President Donald Trump and Ukrainian President Volodymyr Zelensky planned to sign the U.S.-Ukraine minerals deal was canceled, following a tense shouting match between the two inside the Oval Office earlier in the day. (Xinhua/Hu Yousong)