Divisions between Donald Trump and other leaders of G7 nations were laid bare on the first day of their summit.
The US leader made a surprise call for Russia to be readmitted to the group of top industrialised nations after its expulsion for annexing Crimea.
But German Chancellor Angela Merkel said EU members attending the summit in Canada were all against the idea.
Frictions over trade tariffs recently imposed by the Trump administration continued during Friday’s session.
After meeting French President Emmanuel Macron, Mr Trump said they had a little test once in a while when it came to trade but, he added, they were working it out.
For his part, Mr Macron said he believed all sides were willing to find an agreement.
Reuters news agency cited a French presidential aide as saying the US had agreed to start a trade dialogue with the EU at a technical level in the next two weeks.
Mr Trump is leaving the two-day summit early to head to Singapore for his landmark summit with North Korean leader Kim Jong-un.
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