Friday's clash in the Oval Office between Ukrainian Prime Minister Volodymyr Zelenskiy and President Donald Trump will speed up Washington's efforts to investigate any waste, fraud and abuse involving U.S. aid to Ukraine, a senior U.S. official said. https://www.reuters.com/world/zelenskiy-trump-clash-will-accelerate-us-probe-fraud-ukraine-aide-senior-2025-02-28/