The Supreme Court unanimously rejected Ford Motor Co.’s claim that people who buy its cars in states with little connection to the company shouldn’t be allowed to sue in personal injury lawsuits, a ruling that will make it easier for plaintiffs to sue automakers throughout the country. The ruling, issued March 25, covers two appeals, Ford Motor Co. v. Montana Eighth Judicial District Court, court file 19-368, and Ford Motor Co. v. Bandemer, court file 19-369. Conventional legal thinking has been that plaintiffs injured in vehicles can’t sue the automaker if the states in which they were injured have a weak business connection to the automaker. Ford argued it could only be sued in states if the cars were designed, manufactured, or sold there. A plaintiff’s claim ought to “have at least some causal connection to some act the defendant took in … the forum” in which the lawsuit is being heard, the company …