"The right to strike is on trial in the Supreme Court. At stake is a 64-year-old precedent that shields workers and unions from state lawsuits while they pursue unfair labor practice claims in the federal National Labor Relations Board (NLRB). If unions have to defend against costly lawsuits, it will likely discourage them from going on strike."
https://consortiumnews.com/2023/01/19/us-supreme-court-about-to-eviscerate-the-right-to-strike/