Biden and Trump both clashed with Zelensky over aid

U.S. presidents Joe Biden and Donald Trump both had tense exchanges with Ukrainian President Volodymyr Zelensky. Biden raised his voice during a private 2022 call about U.S. aid, while Trump confronted Zelensky publicly during a recent White House meeting. Biden expressed frustration over Zelensky's requests for more aid, urging gratitude for U.S. support. In contrast, Trump accused Zelensky of being disrespectful and gambling with World War III, leading to an abrupt end to their meeting. The encounters reflect a shift in U.S.-Ukraine relations, with Biden's private frustration contrasting Trump's public hostility. A proposed minerals deal was also a point of contention, with no security guarantees offered by Trump.