In Caldwell v. Jackson, the Supreme Court ruled that a state legislature could not pass laws which would interfere with or impair contracts made by individuals in another state. The case involved an agreement between two parties from different states, and one of them sought to have it enforced under the law of his home state. However, this was challenged on the grounds that such enforcement violated a statute passed by his home state's legislature prohibiting any contract made outside its borders from being enforced within its jurisdiction. The Supreme Court held that while states had some authority over their own citizens' contracts, they did not have power to regulate those entered into in other states as this would be unconstitutional interference with interstate commerce and violate Article IV Section 1 of the Constitution (the Full Faith and Credit Clause).

In Caldwell v. Jackson, the Supreme Court held that a state court could not exercise jurisdiction over a case involving citizens of different states without violating Article III of the Constitution. The dissenting opinion argued that this decision was too restrictive and would lead to an increase in litigation between states as well as unnecessary delays in resolving disputes. Furthermore, it argued that there were other ways for courts to protect individual rights without infringing on state sovereignty or creating additional costs and burdens for litigants. It suggested allowing state courts to hear cases where both parties are from the same state but have conflicting interests with regard to another party from another state, so long as those interests do not interfere with federal law or policy. In conclusion, while recognizing the importance of protecting individual rights under Article III, it maintained that such protection should be balanced against considerations of fairness and efficiency when determining whether a particular dispute is suitable for adjudication by a particular court system