Fact check: Trump falsely claims Pope Leo said Iran can have a nuclear weapon - CNN

CNN
April 16, 2026
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CNN fact-checked President Trump's false claim that Pope Leo X said Iran could have a nuclear weapon.

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CNN fact-checked President Trump, reporting that he falsely claimed Pope Leo X stated Iran could possess a nuclear weapon. This claim was made by President Trump regarding a historical religious figure and a modern geopolitical issue. The fact-check highlights a discrepancy between President Trump's assertion and historical records, as Pope Leo X lived centuries before nuclear technology existed. This clarification is significant because it addresses misinformation from the President concerning a sensitive international topic.

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CNN conducted a fact-check on President Trump's claim.

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