This chapter recounts the battles outside and within the Supreme Court over the five cases, first argued in 1952, argued again the following year, and decided in May 1954 under the caption Brown v. Board of Education of Topeka, Kansas. The chapter draws on transcripts of the lawyers’ oral arguments, notes of justices from the Court’s closed-door conferences to debate and decide cases, and the Court’s unanimous opinion striking down public school segregation. Among the dozen-plus lawyers who argued the five cases, Thurgood Marshall as NAACP general counsel and John W. Davis, former Democratic presidential candidate and U.S. solicitor general, who both argued in the South Carolina case, presented a sharp contrast over the rights of states to impose segregation in public schools. The Court’s closed-door conference after these arguments exposed a rift, with at least one and possibly four justices unwilling to jettison the Plessy “separate but equal” doctrine. Concerned that a split decision would inflame the heated national debate, Justice Felix Frankfurter proposed a second round of arguments a year later; the sudden death in September 1953 of Chief Justice Fred Vinson led President Dwight Eisenhower to name California governor Earl Warren to replace him. Warren used his personal charm and political skills to cajole the Court’s holdouts to join a unanimous decision. However, a third round of arguments on “implementation” of integration allowed Jim Crow schools to proceed with “all deliberate speed” in complying with the Court’s decree, which led to decade-long foot-dragging by southern officials. The chapter concludes with an account of the Little Rock, Arkansas, integration case, Cooper v. Aaron, holding that state officials could not wage “war against the Constitution” by resisting the Court’s orders.