US Senator Lindsey Graham, a leading Republican and close ally of President Donald Trump, has died at the age of 71 after suffering a cardiac arrest. His death came only days after he returned from a diplomatic visit to Ukraine, where he had met President Volodymyr Zelensky, and his sudden passing has drawn tributes from world leaders across differing nations and political alignments, reflecting his prominent role in international affairs.

Graham had remained active in high-level foreign policy discussions right up to his death, including recent talks with Israeli Prime Minister Benjamin Netanyahu over US military aid to Israel. Condolences came from figures in Ukraine, Israel, NATO and the United States, with President Trump describing him as "a true American Patriot". The tributes acknowledged his long career and influence in shaping US foreign policy over many years.