This text outlines the biography of John F. Kennedy as written by his close advisor, Theodore Sorensen, focusing on the evolution of his political identity and leadership. It chronicles his journey from a young Massachusetts Senator to the Presidency, highlighting critical moments like the Bay of Pigs and the Cuban Missile Crisis. Sorensen emphasizes Kennedy's intellectual growth, his complex relationship with his family, and his efforts to address civil rights and economic policy. The sources provide an intimate look at the White House decision-making process, revealing the President’s calm demeanor and strategic pragmatism during global tensions. Ultimately, the narrative portrays a leader dedicated to a "strategy of peace" whose life and legislative goals were abruptly halted by assassination.