French President Emmanuel Macron played the role of fact-checker when President Donald Trump repeated one of his regular false claims about ISIS fighters.

Trump claimed again that ISIS prisoners being held in Syria are "mostly from Europe." This assertion has been repeatedly contradicted by Trump's own officials.

James Jeffrey, Trump's special envoy to the anti-ISIS coalition, said on August 1 that about 8,000 of about 10,000 terrorist fighters being held in northeastern Syria were Iraqi or Syrian nationals; he said there were "about 2,000 ISIS foreign fighters" from all other countries.

Macron responded that "there are a large number of fighters you have on the ground: ISIS fighters coming from Syria, from Iraq, and the region."

While it is true that some came from Europe, he said, they are "a tiny minority of the overall problem."