In Sloan v. Lewis, the Supreme Court of the United States was asked to decide whether a contract between two parties was valid and enforceable. The contract in question was between a husband and wife, and it provided that the husband would pay the wife a certain sum of money each month for the rest of her life. The husband had failed to make the payments, and the wife sued him for breach of contract. The Supreme Court held that the contract was valid and enforceable. The Court noted that the contract was not against public policy, and that it was not contrary to any law or statute. The Court also noted that the contract was not unconscionable, and that it was not against the interests of either party. The Court concluded that the contract was valid and enforceable, and that the husband was liable for breach of contract.

In Sloan v. Lewis, the Supreme Court was asked to decide whether a state court had jurisdiction over a case involving an alleged breach of contract between two citizens of different states. The majority opinion held that because the parties were from different states, and there was no diversity in citizenship among them, the state court did not have jurisdiction over this matter. Justice Field dissented on this decision and argued that it should be up to each individual state to determine if they have jurisdiction or not. He reasoned that since Congress has never passed any law explicitly denying such power to the states, then it is within their right as sovereign entities to make decisions about which cases they can hear based on their own laws and regulations. Furthermore, he noted that allowing each state its own discretion would help promote uniformity in legal proceedings across all jurisdictions while still preserving local autonomy when necessary.