Local steelworkers, community leaders, and economic experts said President Donald Trump’s announcement Friday that a deal was struck between U.S. Steel and Nippon Steel will go down in American history as the most enduring economic “big, beautiful deal” the 47th president has made.

It is a deal robustly supported by the rank-and-file steelworkers from the three plants that make up the Mon Valley Works. The deal is believed to reverse the decline of steel that began under President Jimmy Carter in the 1970s.

“I am proud to announce that, after much consideration and negotiation, U.S. Steel will REMAIN in America and keep its headquarters in the Great City of Pittsburgh,” said Trump, who had been engaged in intense negotiations over a sale between the iconic American company and Nippon Steel.

“This will be a planned partnership between United States Steel and Nippon Steel…and the largest investment in the history of the Commonwealth of Pennsylvania,” he said.