United States v. Fisher was a United States Supreme Court case that dealt with the issue of whether a federal court had the authority to issue an injunction against a state court. The case arose when the United States sought to enjoin the state court from enforcing a judgment against the United States. The United States argued that the state court lacked jurisdiction to issue the judgment, and that the federal court had the authority to enjoin the state court from enforcing the judgment. The Supreme Court held that the federal court did have the authority to enjoin the state court from enforcing the judgment. The Court reasoned that the federal court had the power to enjoin the state court because the United States was a party to the case, and the federal court had the power to protect the rights of the United States. The Court also noted that the federal court had the power to enjoin the state court because the United States was a party to the case, and the federal court had the power to protect the rights of the United States. In conclusion, the Supreme Court held that the federal court had the authority to enjoin the state court from enforcing the judgment against the United States. The Court reasoned that the federal court had the power to protect the rights of the United States, and that the federal court had the power to enjoin the state court from enforcing the judgment.

In United States v. Fisher, the Supreme Court was asked to determine whether a tax imposed on distilled spirits by Congress in 1868 was constitutional. The majority opinion held that it was not unconstitutional and thus upheld the tax. Justice Field dissented from this decision, arguing that Congress had no power to impose such a tax because it did not fall within any of its enumerated powers under Article I of the Constitution. He argued further that even if there were some implied power for Congress to levy taxes, this particular one would be an unreasonable exercise of such authority as it would interfere with state taxation laws and violate principles of federalism enshrined in our Constitution. Furthermore, he noted that since other forms of taxation existed at the time which could have been used instead (such as excise taxes), imposing a new form like this one constituted an abuse of congressional discretion and should be struck down accordingly.