The Judiciary
n1.District courts-94 in 50 states, 300,000 cases,665 judges, a final decision of a district court is reviewable by a court of appeals
n2. Courts of appeals-13 judicial circuits, 50,000 appeals, 179 judges, the authority to review decisions of the district courts, less than 1 percent of the cases from these courts are looked at carefully by the Supreme Court