Members of one union rejected a tentative deal with the largest U.S. freight railroads Wednesday while three other unions remained at the bargaining table just days ahead of a strike deadline, threatening to intensify snarls in the nation's supply chain that have contributed to rising prices.
About 4,900 members of the International Association of Machinists and Aerospace Workers District 19 voted to reject the tentative agreement negotiated by IAM leadership with the railroads, the union said Wednesday.
