Which court serves as the final avenue of appeals in the United States?

The U.S. Supreme Court serves as the final avenue of appeals in the United States because it is the highest court in the federal judiciary and has the ultimate authority over all laws and legal interpretations. When a case is brought before the Supreme Court, it has the power to make decisions that can overturn lower court rulings, including those made by federal or state courts. The Court's discretion to choose which cases to hear, often dealing with significant constitutional issues or federal law, emphasizes its role as the ultimate arbiter in the American legal system. This means that decisions made by the Supreme Court can only be challenged by an act of Congress or a constitutional amendment, solidifying its position as the final stop in the legal appeal process.