USW President Thomas Conway said the union had helped press for changes to the initial version of the trade signed by the leaders of the United States, Mexico and Canada last year, and now supported its passage.
"There is still a great deal of work to do in terms of implementing, monitoring and enforcing the provisions, but the base for progress is there," Conway said. "The revised deal is better than the original USMCA and certainly better than NAFTA. It should be adopted."
(Reporting by Andrea Shalal; Editing by Sandra Maler)