Delbert Williamson v. Mazda Motor of America, Inc. — Sotomayor, J., Concurring

Summary

Justice Sotomayor concurred, agreeing with the majority that the state tort suit is not preempted. She emphasized that under Geier, implied preemption requires evidence that a regulatory objective depends on manufacturers having a choice between options, which was lacking here. Justice Thomas concurred in the judgment, relying directly on the Safety Act's saving clause and criticizing purposes-and-objectives preemption as unconstitutional.