The readout from the French president's official residence Élysée Palace, obtained by the White House press pool reporter, said Mr. Trump and Macron discussed the cooperation after the USA government after the Pentagon confirmed it had detected "potential" evidence of preparations for a chemical assault in Syria.
"We are not interested in going to war with Russian Federation", he said.
The White House offered no details on what prompted the warning.
But he said he was confident the threat would make Syrian President Bashar al-Assad think twice about another chemical weapons attack after the United States' military strike on Syria in April, a strike that Gorka said sent a strong signal that "under this administration of Donald J. Trump, red lines mean red lines".
A Monday evening statement by White House Press Secretary Sean Spicer said the USA had "identified potential preparations for another chemical weapons attack by the Assad regime that would likely result in the mass murder of civilians, including innocent children".
"We're right on the threshold" of losing on health care, a White House official told CNN on Monday night, shortly after the White House's statement on Syria.
" U.S. assertions that the Syrian government may be planning a chemical weapons attack complicate peace talks on Syria", RIA news agency quoted Gatilov as saying.
Monday's White House statement drew condemnation from Moscow, a key Assad ally, with Kremlin spokesman Dmitry Peskov telling journalists: "We consider such threats against the Syrian leadership to be unacceptable". "The activity that we've seen at Sheyrat in the last couple of days is associated with chemical weapons handling at a known spot on that base, a known aircraft shelter that is used for chemical weapons". The U.S. and its allies blame Syria for the attack.
Adrian Rankine-Galloway, said. He said Assad's "brutality" threatens the region and US interests, and any Syrian attacks with weapons of mass destruction risk prompting others to use similar weapons. You might remember when the USA fired dozens of Tomahawk missiles from two American destroyers in the Mediterranean.
Chemical weapons have killed hundreds of people since the start of Syria's six-year civil war.
White House spokeswoman Sarah Huckabee Sanders flatly denied the White House was freelancing on foreign policy.
The White House statement on Monday night was made without forewarning and caught State Department officials by surprise.
"And when he didn't cross that line after making the threat, I think that set us back a long ways, not only in Syria, but in many other parts of the world, because it was a blank threat", Trump had said.