The Supreme Court hears a case this week that endangers workers’ ability to strike

The Supreme Court hears a labor dispute on Tuesday involving striking truck drivers who walked off the job to try to secure a better contract from their employer, a company that provides premixed concrete for construction projects. Yet, while Glacier Northwest v. International Brotherhood of Teamsters is a fairly unremarkable case, the stakes for unionized workers could be enormous.

Glacier Northwest, the employer beyond this case, seeks to upend a more than 60-year-old rule protecting unions from lawsuits when workers exercise their federally protected right to strike.

It’s an audacious ask, and the case...