US President Donald Trump and Ukrainian President Volodymyr Zelenskiy clash on efforts to end the war in Ukraine, with Trump criticizing Zelensky for not recognizing Russia's occupation of Crimea. Trump's Vice President warns that the US could walk away from the peace process. Zelensky reiterates that Ukraine will never cede Crimea to Russia. Trump expresses optimism about the London talks and emphasizes the need for agreement between strong and smart leaders to end the killing.