A federal court is a part of the United States judicial system that deals with cases involving federal laws, the U.S. Constitution, or disputes between states. These courts have the authority to hear cases that involve issues like immigration, bankruptcy, and civil rights. Federal courts operate at three main levels: District Courts, Courts of Appeals, and the Supreme Court. Federal judges are appointed by the President and confirmed by the Senate. They serve lifetime terms, ensuring independence from political pressures. Cases in federal court can be initiated by individuals, organizations, or the government, and decisions can be appealed to higher courts if necessary.