President Trump and Vice President JD Vance scolded Ukraine's president, Volodymyr Zelensky, in an explosive public confrontation in the Oval Office. The leaders accused Zelensky of not being grateful enough for U.S. support in its war with Russia and sought to strong-arm him into a peace deal. The confrontation eroded plans for a rare minerals deal and left the U.S.-Ukraine relationship in turmoil.