約翰·麥凱恩（John Sidney McCain Ⅲ）美國著名的政治傢、共和黨人，現為亞利桑那州國會參議員。

麥凱恩一九三六年齣生於美國控製的巴拿馬運河區域，父親小約翰·西德尼·麥凱恩和祖父老約翰·西德尼·麥凱恩皆曾任美國海軍上將二麥凱恩在弗吉尼亞州亞曆山德裏亞的聖公會中學和安那波利斯海軍學院接受教育。其後他擔任海軍飛行員，在越南執行戰鬥任務，被浮後被拘禁長達五年半之久，由此成為全國知名人物。

獲釋迴國後，麥凱恩在一九八二年當選亞利桑那州第一選區的眾議員，並在一九八六年當選參議員目前是他作為參議員的第四個任期。

麥凱恩曾在二○○○年美國總統選舉中角逐共和黨的提名，但被喬治·沃剋·布什擊敗；二○○八年他成為美國總統大選的共和黨候選人，最終在與民主黨候選人奧巴馬參議員的對決中落敗。

John McCain is one of the most admired leaders in the United States government, but his deeply felt memoir of family and war is not a political one and ends before his election to Congress. With candor and ennobling power, McCain tells a story that, in the words of Newsweek, "makes the other presidential candidates look like pygmies."

John McCain learned about life and honor from his grandfather and father, both four-star admirals in the U.S. Navy. This is a memoir about their lives, their heroism, and the ways that sons are shaped and enriched by their fathers.

John McCain's grandfather was a gaunt, hawk-faced man known as Slew by his fellow officers and, affectionately, as Popeye by the sailors who served under him. McCain Sr. played the horses, drank bourbon and water, and rolled his own cigarettes with one hand. More significant, he was one of the navy's greatest commanders, and led the strongest aircraft carrier force of the Third Fleet in key battles during World War II.

John McCain's father followed a similar path, equally distinguished by heroic service in the navy, as a submarine commander during World War II. McCain Jr. was a slightly built man, but like his father, he earned the respect and affection of his men. He, too, rose to the rank of four-star admiral, making the McCains the first family in American history to achieve that distinction. McCain Jr.'s final assignment was as commander of all U.S. forces in the Pacific during the Vietnam War.

It was in the Vietnam War that John McCain III faced the most difficult challenge of his life. A naval aviator, he was shot down over Hanoi in 1967 and seriously injured. When Vietnamese military officers realized he was the son of a top commander, they offered McCain early release in an effort to embarrass the United States. Acting from a sense of honor taught him by his father and the U.S. Naval Academy, McCain refused the offer. He was tortured, held in solitary confinement, and imprisoned for five and a half years.

Faith of My Fathers is about what McCain learned from his grandfather and father, and how their example enabled him to survive those hard years. It is a story of three imperfect men who faced adversity and emerged with their honor intact. Ultimately, Faith of My Fathers shows us, with great feeling and appreciation, what fathers give to their sons, and what endures.