Paris, France - President Donald Trump once again stoked doubt about the future of the US-Mexico-Canada Agreement, musing about it "expiring immediately" mere weeks from the renegotiation deadline.

"I would rather not have the agreement, but it, I may sign it, but I would rather – we do better as a country if we don't have an agreement," Trump told reporters on the tarmac at Paris' Orly Airport.

"I'm thinking about maybe we won't be able to make a deal," Trump continued. "I would rather not have the USMCA. The primary reason I wanted it was because there was no way out of NAFTA, which was the worst trade agreement ever made, like ever."

Trump made the comments briefly before boarding his plane to travel back from this week's G7 Summit in Evian. During the trip, he also made a trip to the Palace of Versailles, where he signed a copy of his deal to end the war with Iran.

China Taiwan president hopes for $14 billion US arms sale "as soon as possible"

His renewed threat against the USMCA comes as the three countries approach a deadline on July 1, by which point they must declare whether they intend to extend the agreement beyond its 2036 expiry date.

While Mexico and Canada want to see the agreement renewed, the US has delayed negotiations and consistently downplayed the importance of the agreement, despite the fact that it covers about $2.7 trillion worth of free trade annually across North America.

"I would prefer not having an agreement, but I'm open to doing it; we'll see what happens," Trump said on Wednesday. "I view it as possibly expiring immediately."

Earlier this week, Canada's ambassador to the US, Mark Wiseman, tried to relieve concerns about the USMCA by insisting that "it's all going to be okay."