The plaintiff is a State A corporation that entered into a contract with the defendant under which the defendant agreed to manufacture and sell equipment to the plaintiff. The equipment is heavily regulated by the federal government. The plaintiff plans to sue the defendant for $1 million because the equipment does not conform to the contract specifications and does not operate properly. The defendant is incorporated in State B, but all of its facilities and offices are in State A. Would a federal district court have subject matter jurisdiction over the plaintiff's action