Shawn Fain, president of the United Automobile Workers, speaks during the Democratic National Convention Monday, Aug. 19, 2024, in Chicago. (AP Photo/Paul Sancya)

FILE - United Auto Workers members walk in the Labor Day parade in Detroit, Sept. 2, 2019. (AP Photo/Paul Sancya, File)

FILE - This Jan. 19, 2021 file photo shows the Stellantis sign outside the Chrysler Technology Center in Auburn Hills, Mich. (AP Photo/Carlos Osorio)