John N. Horne, Plaintiff-Respondent v. Los Alamos National Security, L.L.C., George Peter Nanos, and Kevin W…

Summary

The New Mexico Supreme Court reversed the Court of Appeals and reinstated the district court's summary judgment in favor of Los Alamos National Security, holding that the arbitration agreement waived Horne's right to bring his claims in court because he failed to obtain a scope‑of‑arbitration ruling from the arbitrator. The decision emphasizes that a party who contracts to arbitrate must object to the arbitrator’s jurisdiction on the record and cannot later relitigate the arbitrated issues.