However, the Democrats-controlled House can challenge that by introducing a rule to remove the deal from fast-track consideration, which could lead to a prolonged debate about possible "tweaks" of the deal.
Simply put, "The NAFTA 2.0 text is not the transformational replacement of the corporate-rigged trade-pact model that progressive activists, unions, and congressional Democrats have long demanded", wrote Lori Wallach, director of Public Citizen's Global Trade Watch. The revised pact, which comes after a long, hard negotiation, won't replace NAFTA until it's been approved by the legislatures of all three countries.
But battles, he added, sometimes make "great friendships".
Both Trudeau and Trump have taken criticism over the new agreement.
Despite the smiling, disagreements remain between the two leaders.
There's New York, New York, the proverbial "city so nice they named it twice", but it's debatable whether the trade deal that Canada, Mexico and the United States signed Friday at the G20 summit will earn similar repetition.
"That's why I am here today", Trudeau continued, saying the agreement "lifts the risk of serious economic uncertainty that lingers throughout a trade renegotiation process".
Trump had vowed to revamp NAFTA during his 2016 presidential election campaign.
The U.S. president, in bombastic style on Friday, called it "groundbreaking" and debatably "the largest, most significant and balanced trade agreement in history".
While Trump hailed the revised trade pact, Trudeau was more measured and used the event to call on Trump to remove the steel and aluminium tariffs the US slapped on Canada and Mexico.
The USMCA emerged in early October, months after Trump hit Mexico and Canada with tariffs on their steel and aluminum products. But he also used the ceremony to call on Trump to remove steel and aluminum tariffs the US slapped on Canada and Mexico.
During the signing ceremony, Trump praised outgoing Mexican President Nieto for signing the deal on the last day of his presidency.
"There's some good signs", Trump said.
Several lawmakers who have seen intelligence reports say the CIA points blame at the crown prince. The agreement includes a new rule, for example, that a vehicle will only be freed from tariffs if 40 per cent or more of its contents are produced by workers earning $16 (U.S.) per hour or more.
The U.S. Tire Manufacturers Association (USTMA) expressed its support of the signing of the USMCA. He pinned a medal to Kushner's jacket as Trump and top administration officials looked on. He threatened to tear it up and withdraw the United States completely at times during the negotiation, which would have left trade between the three neighbours in disarray. The United States, for its part, wants Canada and Mexico to accept quotas that would force them to export less of the metals to the United States, said sources briefed on the negotiations.
All three leaders are in Argentina to attend the G20 summit. "Instead, we have a deal that locks in numerous old rules that have driven farmers out of agriculture for more than two decades".
On Thursday, as Trump was leaving Washington for Argentina, his former attorney and fixer, Michael D. Cohen, pleaded guilty to lying to Congress about that project, and implicated the president.
Trump showed that the Russian Federation investigation was testing his ability to stay focused on summit business after he blasted the investigation in a fresh tweet on Friday, again calling it a "Witch Hunt!"