The enthralling, previously untold story of the friendships and forces that shaped the Kennedy presidency. In the summer of 1938 a tall, raw-boned Harvard student arrived in London, where his father was the American ambassador and his favorite sister, Kick, had gained entr?e to a closed group of young aristocrats. In the run-up to World War II, as Winston Churchill called on a reluctant Britain to resist Adolf Hitler before it was too late, Jack Kennedy...