Riding in an open-topped convertible through Dallas on November 22, 1963, Lyndon B. Johnson heard a sudden explosive sound at 12:30 PM. The Secret Service sped him away to safety, but not until 1:20 PM did he learn that John F. Kennedy had been assassinated. Sworn in next to a bloodstained Jackie Kennedy at 2:40 PM, Johnson worked feverishly until 3:00 in the morning, agonizing about the future of both his nation and his party. Unbeknownst to him, his actions had already determined the tragic ou