The Supreme Court decided Monday that one state cannot unwillingly be sued in the courts of another, overruling a 40-year precedent and perhaps, foreshadowing an argument over the viability of other high court decisions.

The outcome left one dissenting justice wondering “which cases the court will overrule next.”

The justices divided 5-4 to end a long-running dispute between California officials and Nevada inventor Gilbert Hyatt.

Hyatt is a former California resident who sued California’s tax agency for being too zealous in seeking back taxes from him. Hyatt won a judgment in Nevada courts.

But Justice Clarence Thomas wrote for the court’s conservative justices that the Constitution forbids states from opening the doors of their courts to a private citizen’s lawsuit against another state. In 1979, the high court concluded otherwise.

The four liberal justices dissented, saying they would have left alone the court’s decision in Nevada v. Hall. Justice Stephen Breyer said there are good reasons to overrule an earlier case, including that it is no longer workable or a vestige of an otherwise abandoned legal doctrine.