Ukraine President Volodymyr Zelenskiy made sure to be on his best behavior for a crucial Oval Office meeting with Donald Trump — and it paid off. Trump and Zelenskiy got along and, more importantly, he came away with a valuable prize: a commitment from the US President, at least for now, to join security guarantees for any peace deal and reserve discussion on territorial swaps with Russia for later. Bloomberg's Oliver Crook reports.

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