There is more work to be done, Trudeau said, calling the recent announcement that General Motors will close plants in Canada and the USA "a heavy blow".
US president Donald Trump, left, and Justin Trudeau, Canada's prime minister, smile during a news conference before the signing of the United States-Mexico-Canada Agreement (USMCA) at the G-20 Leaders' Summit in Buenos Aires, Argentina, on Friday Nov. 30, 2018.
"Revamping the new trade agreement was aimed to preserve the view of an integrated North America with the firm belief that together we are stronger and more competitive", he said in remarks translated from Spanish.
The administration will need Democratic support too, as the party takes control of the House next year.
"Canadians got here because Team Canada was driven by the interests of the middle class", Trudeau said.
"We admire the [U.S.] trade representative and the attempts he has made to make us aware of what is in it".
It was not clear until just a day earlier that the ceremony would go through amid ongoing Canadian protests over US-imposed steel and aluminum tariffs.
NAFTA was signed by Canada, Mexico, and the United States in 1993 and came into force in 1994, during the presidency of Bill Clinton.
The deal's completion lifts the economic uncertainty created by the acrimonious 15-month negotiation process, an uncertainty that "only would have gotten worse" had the parties not reached a new agreement, Trudeau said at the signing ceremony.
Trump signs trade deal with Canada and Mexico
Trump hailed the deal as the biggest and most balanced trade agreement in history, adding the three partners would all benefit.
Trump has made renegotiating NAFTA a centrepiece of his presidency.
In an interview this week with Bloomberg, Toomey said that the USMCA is "frankly, not really as good as the underlying NAFTA".
Trump acknowledged that Friday was Pena Nieto's last day in office and congratulated him on the achievement of signing on to the deal. It updates the trade pact to reflect the rise of the digital economy since the original NAFTA took effect almost a quarter century ago.
"We've known each other a long while", Trump said, noting he worked with Macri's father on real estate developments. The United States is naturally putting America first with USMCA.
However, the agreement does make some changes to the more controversial "Investor-State Dispute Settlement" powers, which critics said had allowed powerful companies and wealthy investors to invalidate local laws and court decisions through unaccountable arbitration.
For Trump - whose G20 diplomacy is overshadowed by legal troubles back home and his abrupt cancellation of a bilateral meeting with Russian President Vladimir Putin - the signing was a victory. "We've taken a lot of barbs and a little abuse and we got there", Trump said of the pact. 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.
Retaliatory tariffs by Mexico have harmed US dairy and pork farmers.
Trump opened Friday with a cordial meeting at the Casa Rosada with Argentine President Mauricio Macri, a longtime business acquaintance. The news ensured any meeting with Putin would have put a spotlight on the United States special counsel's investigation into whether the Trump campaign colluded with Moscow during the election.
The North Korean leader said he would visit Seoul "in the near future", during his third summit with Moon in September. A North Korean soldier defected to South Korea across the eastern land border on Saturday, the South's military said.
Hyde-Smith remarked that she would go to a "public hanging," a comment she said was made in jest and eventually apologized for. The discovery comes just before Tuesday's runoff election between Democrat Mike Espy , who is black, and Republican Sen.
Apple appealed that decision to the Supreme Court, who today heard the arguments (PDF) as it decides whether to hear the case. The Supreme Court is considering whether Apple's App Store is a monopoly and if consumers can sue the company over it.
Captain Sarah Goss scored three tries as New Zealand finished ideal in pool play on day one of the Dubai Sevens . The New Zealand Black Ferns claimed the gold medal with a comfortable 26-14 victory over Canada in the final.
Powell also revealed the economic growth coincides with inflation, and the Fed's annual goal of 2 percent interest rate increases. Joblessness stood at 3.7% in October, well below the rate the Fed sees as sustainable in the longer run.
On November 25, some of the migrants clashed with US Border Patrol agents, who dispensed tear gas in response to thrown stones. District Court later that day on one count of assault on a federal officer and one count of alien in possession of a firearm.
Figures for all console and game sales covering the season, which will be reported in January, should prove interesting. Luckily, Amazon is giving us a chance to pick up the Xbox One X with a steep $100 discount for Cyber Monday .
A right hook to the top of Fury's head in round nine dropped the big man after Fury was showboating, daring Wilder to hit him. Wilder tried going to the body too but, more often than not, his punches landed harmlessly on Fury's massive elbows.
The incidents are being reviewed by policing authorities and an investigation into at least one of them is ongoing. The local council also responded, saying: "Behaviour like this will not be tolerated".
Around 425,000 U.S. troops and 118,000 coalition forces were mobilized for weeks of aerial strikes and a 100-hour ground battle. Bush , twice won the presidency, only the second time in USA history that a father and son both became the US leaders.
Trump to bring China hardliner Navarro to Xi meeting
Macron and British Prime Minister Theresa May both raised the murder of Khashoggi during meetings with the 33-year-old prince. The de facto Saudi leader denies having prior knowledge of Khashoggi's killing at the Saudi consulate in Istanbul in October.
Oil suffers worst month in a decade on oversupply fears
After reaching a four-year high in early October, crude has collapsed more than 30 per cent, marking the worst crash since 2015. The report from TRT World said that much of the country's economy depends greatly on the global oil market.
Stormy end to month as Diana arrives with 70mph gales
The Iceland Met Office has issued a yellow weather warning for most parts of Iceland for tomorrow and until midnight on Thursday. He said: "We have a yellow warning for wind in the west of the United Kingdom for today and tomorrow.