The call with Macron came the same day the United States announced a unilateral decision to slap steel and aluminium tariffs on American allies, including Mexico, Canada, and the European Union, CNN reported.
The French president spent the day meeting with Prime Minister Justin Trudeau and other Canadian officials ahead of the June 8-9 summit in La Malbaie, Quebec.
"We have extremely low expectations that we will manage to convince President (Donald) Trump to change his policy both on steel and aluminium and on Iran", the official said.
With his new tariffs increasing US isolation, Trump heads to Canada on Friday for a meeting of the Group of Seven industrialized nations.
The letter was published during a trip to Europe by Israeli Prime Minister Benjamin Netanyahu, who has backed Trump in declaring the nuclear deal too soft on Iran. European allies have urged Trump to reconsider the move.
He's in stand-offs with Mexico, Canada, China, Japan, and members of the European Union (EU), a collection of countries that includes numerous world's largest economies and the largest USA trading partners.
Canadian Prime Minister Justin Trudeau predicted "robust discussions" on trade but other G7 members like Japan and Italy seemed less likely to want to challenge the US president.
Entire Hawaii neighborhood covered by lava
However, it was clear Monday that the vast majority of the approximately 500 homes in Kapoho Beach Lots and Vacationland are gone. Ige is coming to Hilo Thursday to meet with Kim, Snyder said, and the main focus will be on fast-tracking temporary housing.
While Macron and Trump fundamentally disagreed on several issues, most notably climate change and trade, the USA president has described his French counterpart as "perfect", "a great guy," and "a friend of mine".
But after more than one year of multilateral discussions, he feels the current approach hasn't been fruitful and a new one is needed, Mr Kudlow said. The EU also attends.
Macron stressed however that the United States was no longer the sole economic superpower in the world and urged other industrialized countries to stick together.
Such a move towards separate talks would come at a tense time in United States trade relations with the two countries.
Kudlow, the director of the U.S. National Economic Council, refused to discuss what CNN first reported was a tense phone call recently between Trump and Trudeau. They tried to have close relations with him.
Trudeau added that he would convey Canada's displeasure over the metal tariffs personally when he met Trump at the summit.
"Canada is fighting back to support Canadian workers and the businesses that employ them", Goodale said.