FILE – Tom Duffy of Clairton raises his fist as hundreds of United Steelworkers rally and march on Thursday, Aug. 30, 2018, in Clairton, Pa. The United Steelworkers Union has endorsed President Joe Biden Wednesday, March 20, 2024, giving him support from another large labor union. (Steph Chambers/Pittsburgh Post-Gazette via AP, File)

PITTSBURGH (AP) — The United Steelworkers Union has endorsed President Joe Biden, giving him support from another large labor union. The announcement Wednesday by the Pittsburgh-based union came less than a week after Biden voiced opposition to the planned sale of U.S. Steel to Nippon Steel of Japan. The USW represents 850,000 workers in metals, mining, rubber and other industries. It said that Biden has a track record of supporting retirement security, affordable health care and laws that support workers. The union said those issues are important to its members. The AFL-CIO, United Auto Workers, and several other unions previously endorsed Democrat Biden in his race against Donald Trump, the presumptive Republican nominee. The Teamsters union has yet to announce its pick.