WASHINGTON — President Donald Trump on Wednesday signed into law a major rewrite of the rules of trade with Canada and Mexico that he said replaces the “nightmare” of a Clinton-era agreement and will keep jobs, wealth and growth in America.

Trump made renegotiating the North American Free Trade Agreement a priority during his 2016 campaign, although trade experts say the impact of the new U.S.-Mexico-Canada Agreement will be modest.

“This is a cutting-edge, state-of-the-art agreement that protects, defends, and serves the great people of our country,” Trump said in an outdoor signing ceremony at the White House, where the invitation list included more than 70 Republican members of Congress but no Democratic legislators. “Together we are building a glorious future that is raised, grown, built and made right here in the glorious U.S.A.”

Canada and Mexico already represent the top two export markets for U.S. goods. But the new pact, along with the signing of a “phase one” agreement with China, dials down trade tensions that contributed to slowing economic growth globally.

The leaders of the U.S., Canada and Mexico signed the deal in late 2018. Legislation implementing it received overwhelming, bipartisan support in Congress after several months of behind-the-scenes negotiations between Democratic lawmakers and the Trump administration.

Trump made a point of praising Republican legislators for their work in passing the deal but did not mention the role of Democrats, who said that even if they weren’t invited to the signing ceremony, their influence was being felt.

“What the president will be signing is quite different from what the president sent us,” said House Speaker Nancy Pelosi, D-Calif. “We were able to make vast improvements. If we weren’t, we would not have been able to pass the bill.”

Rep. Richard Neal, chairman of the House Ways and Means Committee, said it only passed Congress because of how the Democrats forced changes in Trump’s original proposal. “They voted for it for one reason, is because of how we shaped and altered the president’s proposal,” said Neal, D-Mass.

NAFTA, which took effect in 1994 under President Bill Clinton, tore down trade barriers between the three North American countries and commerce between them surged. But Trump and other critics said NAFTA encouraged factories to leave the United States and relocate south of the border to take advantage of low-wage Mexican labor.

Trump threatened to leave NAFTA if he couldn’t get a better deal, creating uncertainty over regional trade.

His trade negotiator, Robert Lighthizer, pressed for a revamped pact designed to bring factory jobs back to the United States. The new agreement, for example, requires automakers to get 75% of their production content (up from 62.5% in NAFTA) from within North America to qualify for the pact’s duty-free benefits. That means more auto content would have to come from North America, not imported more cheaply from China and elsewhere.

At least 40% of vehicles would also have to originate in places where workers earn at least $16 an hour. That would benefit the United States and Canada — not Mexico, where auto assembly workers are paid a fraction of that amount.

The independent U.S. International Trade Commission last year calculated that the U.S.-Mexico-Canada deal would add 0.35%, or $68 billion, to economic growth and generate 176,000 jobs over six years — not much of a change for a $22 trillion economy with 152 million non-farm jobs.

“It’s a blip,” said Syracuse University economist Mary Lovely, who studies trade. “The main thing is what it isn’t: It isn’t a continuation of uncertainty, and it isn’t a major disruption” to business.

Critics include environmental groups concerned that the agreement does not address global warming. Some conservatives say the agreement will make cars and other products more expensive for consumers.

The president wasn’t wasting any time highlighting the deal in battleground states that will determine who wins this year’s presidential election. He will travel Thursday to Michigan, where some of the state’s auto workers should benefit from a deal that encourages more manufacturing in the United States.

Trump wants to talk up a deal that about 4 in 5 Americans have heard little or nothing about. Indeed, while a third of the public approves of the deal and only 5% disapprove, a solid majority, 61%, have not formed an opinion, according to a recent poll conducted by Monmouth University.

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Associated Press writer Andrew Taylor and Deb Riechmann contributed to this report.

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North Country officials praise USMCA signing

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U.S. Rep. Elise Stefanik, R-Schuylerville: “This is a significant victory for the North Country. I am thrilled that the USMCA has been signed into law by President Trump. This agreement will expand our markets for American-made goods with two vital trading partners, boosting our North Country economy. It also provides stability for our agriculture industry by increasing access to those markets. I am proud to have been an outspoken supporter of this important agreement from the beginning, and I will continue to work on behalf of North Country farmers, small businesses, manufacturers, and hardworking families to deliver crucial results like these.”

Garry Douglas, president, North Country Chamber of Commerce, Plattsburgh: “No dynamic is more important to the North Country economy than our cross border economic partnership with Canada. With the enactment of the enabling legislation for USMCA, we can expect the continued benefits that will flow from a renewed and predictable economic relationship. The North Country, more than any other area of the U.S., has made itself a uniquely supportive environment for Canadian-based manufacturing in the U.S. market and for cross-border supply chains. Our large and growing transportation equipment and aerospace cluster is a prime example of this dynamic, now hosting more than 50 companies employing more than 9,000 people. We thank all who helped to get us to this point, including Congresswoman Elise Stefanik who has been a leading champion from the very start of the process and who has become one of the country’s most respected voices in all matters related to U.S.-Canadian relations. Onward and upward!”

David Fisher, president, New York Farm Bureau: “Nearly half of our state’s agricultural exports go to our North American neighbors, and thanks to the president’s signature on USMCA, goods will continue to cross borders to benefit our state’s farms and rural economy. The agreement provides certainty to farmers as well as opens the door to additional market opportunities, most notably for our dairy farms. New York Farm Bureau thanks Rep. Stefanik for her continued support to get this critical trade agreement across the finish line.”