In 2017, the Supreme Court decided Bristol-Myers Squibb Co. v. Superior Court of California, addressing due process concerns related to personal jurisdiction in the context of an action where the vast majority of plaintiffs were residents of states outside the jurisdiction where the plaintiffs filed the lawsuit. Bristol-Myers involved 678 individual product liability claims joined together in a California-state-court-based mass tort action. Nearly 600 of those claims belonged to nonresidents. To establish personal jurisdiction, the nonresidents relied on the similarity of their claims to the California plaintiffs’ claims.