The decision in the case of Glacier Northwest Inc against a local affiliate of the International Brotherhood of Teamsters overturned a lower court’s ruling in the union’s favor.
The supreme court overruled the Washington state supreme court ruling that the loss was incidental to a strike that could be considered arguably protected under the National Labor Relations Act . It also extends the panel’s recent trend of curtailing the power of labor unions. In 2021, justices struck down a California agricultural regulation aimed at helping unions organize workers, the agency said.