The U.S. Court System is a complex structure that interprets and applies the law. It consists of federal and state courts, with federal courts handling cases involving federal laws, while state courts deal with state laws. The system includes various levels, such as trial courts, appellate courts, and the Supreme Court, which is the highest court in the land. Each court has specific functions and jurisdiction. Trial courts hear evidence and make initial rulings, while appellate courts review decisions made by trial courts to ensure the law was applied correctly. This system helps maintain justice and uphold the rule of law across the country.