What is the highest court in the United States called?

The highest court in the United States is known as the Supreme Court. It serves as the final arbiter of federal constitutional law and has the ultimate authority over legal disputes that involve significant constitutional issues. It was established by the Constitution and has both appellate and original jurisdiction, which allows it to hear cases of utmost national importance.

The Supreme Court's decisions set precedents that all lower courts must follow, and it plays a crucial role in interpreting laws and the Constitution, impacting a wide range of legal and societal issues. Its authority comes from its ability to interpret the law and its decisions can only be overturned by subsequent Supreme Court rulings or constitutional amendments. This distinguishes it from other courts such as district courts, circuit courts, and appeals courts, which serve various functions within the judicial system but do not hold the same level of authority as the Supreme Court.