The G7 summit continues in Biarritz, southern France, on its second day. The Iranian nuclear issue dominated the summit talks, in addition to the issues of Brexit, the Amazon fires, China and others.

The summit is being held amid mounting fears of a slowing global economy, and at a time when the international team is working on a range of issues that have overshadowed decades of alliances.

US President Donald Trump has expressed his full support for British Prime Minister Boris Johnson in his confrontation with the Europeans over Brexit.

Trump promised the British Prime Minister a "very big trade agreement" after London's exit from the European Union and said Johnson was "the right man for the job."

Trump spoke positively of the G7 meeting and wrote on Twitter: "Before I arrived in France, the false media were saying that relations with the other six countries in the G7 were very tense and that the summit would be a disaster." "We have very good meetings, the leaders understand very well and the economy of our country is in very good shape."

China
But he quickly disappointed his partners while ruling out any reduction in the escalation of the trade war with China, and also gave the impression that he had doubts about his dispute with Beijing, which worries US partners worried about its implications for global economic growth.

"The president was asked whether he wanted to change his position on the escalation of the trade war with China," White House spokeswoman Stephanie Gresham said. "But his answer was misinterpreted."

"President Trump responded positively because he regretted not raising tariffs further."

Russia
The Kremlin announced on Sunday that it would consider the possibility of President Vladimir Putin's participation in the upcoming summit in the United States, if invited.

Moscow was excluded from the G8 in 2014 after annexing Ukraine's Crimea. But Trump favors returning her to the group, unlike his counterparts.

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Iran
In a statement to reporters on the sidelines of the summit in the French city of Biarritz, Macron said no G7 member wants Iran to have a nuclear weapon.

He stressed that the leaders of the group are very interested in the stability and peace of the region, adding that he and Japanese Prime Minister Shinzo Abe had initiatives on Iran and other initiatives will be launched.

However, the US president said that he did not discuss during the summit that his French counterpart sent a joint message by the G7 to Tehran.

Trump said he supported Macron and Abe's engagement with Iran, adding that his country had its own approach to Iran but could not stop other countries from talking to Tehran.

The statement contradicts Macron's earlier announcement that the G7 countries "have agreed on what they will say to Iran."

A diplomatic source said on Sunday that G7 leaders had agreed to entrust Macron with the task of sending a message to Tehran.

The source confirmed "Macron was tasked with talking to Iran and delivering a message" to this country in order to avoid escalation in the Gulf region.

Trump's remarks followed a series of bilateral meetings on the sidelines of the summit after French diplomatic sources reported that the president was tasked with sending a message on behalf of the group to Iran.

A landmark deal was reached in 2015 between Tehran and major Western powers over Iran's nuclear program, but the deal collapsed after Trump pulled the United States out of it last year and reimposed tougher sanctions on Iran that exhausted its economy.

Macron is leading European efforts to reduce tension by looking for ways to resume dialogue. The Iranian foreign minister met in Paris on Friday on the eve of the G7 summit and held telephone talks with Iranian President Hassan Rouhani.

Amazon
On the other hand, the French president told reporters on Sunday that the Group of Seven countries agreed to "help countries affected" by the Amazon fires "as soon as possible."

Macron said he had not been formally authorized by G7 leaders to send messages to Iran, but would continue his country's efforts over the coming weeks to ease tensions with Tehran.