United States v. Young was a United States Supreme Court case that addressed the issue of whether a federal court had the authority to issue an injunction against a state court. The case involved a dispute between the United States and the state of Ohio over the ownership of certain lands. The United States sought to enjoin the state court from proceeding with a case involving the disputed lands. The Supreme Court held that the federal court did not have the authority to issue an injunction against a state court. The Court reasoned that the federal court lacked the power to interfere with the proceedings of a state court, as this would be an unconstitutional infringement on the state's sovereignty. The Court further noted that the federal court could not issue an injunction against a state court unless the state court was acting in violation of the Constitution or a federal statute. The Court's decision in United States v. Young established the principle that federal courts cannot interfere with the proceedings of state courts unless the state court is acting in violation of the Constitution or a federal statute. This decision has been cited in numerous subsequent cases and has become an important part of the legal landscape.

In United States v. Young, the Supreme Court was tasked with determining whether a federal statute that authorized the seizure of property used in violation of certain laws was constitutional. The majority opinion held that it was, but Justice Field dissented from this ruling and argued that Congress had exceeded its authority under the Constitution by enacting such a law. He noted that while Congress has broad powers to regulate interstate commerce and punish crimes against the United States, those powers do not extend to authorizing seizures without due process or trial by jury as provided for in Article III of the Constitution. Furthermore, he argued that even if such power were granted to Congress through an amendment or other means, it would still be unconstitutional because it would violate fundamental principles of justice and fairness enshrined in our nation's founding documents. In conclusion, Justice Field believed strongly that any attempt by Congress to authorize seizures without due process violated both existing Constitutional provisions as well as basic notions of justice and should therefore be struck down