What is the highest court in the United States called?

The highest court in the United States is the US Supreme Court. This court serves as the ultimate arbiter of federal law, interpreting the Constitution and ruling on significant legal issues that may affect the country as a whole. It consists of nine justices who are nominated by the President and confirmed by the Senate. The decisions made by the US Supreme Court set precedents that lower courts must follow, thus shaping the legal landscape of the nation.

In contrast, the State Supreme Court and Circuit Court are judicial bodies operating within individual states and primarily address state-level legal matters. The Appellate Court reviews decisions from lower courts but does not function at the same level as the US Supreme Court, which holds the highest authority in the federal judicial system.