"Nothing in life is more liberating than to fight for a cause larger than yourself, something that encompasses you but is not defined by your existence alone."

The story of John McCain is one of duty. Fighting battles in the skies over Vietnam...fighting horrifying pain in a Vietnamese prison...fighting for his beliefs in the world of politics and now fighting for his life in a battle with an aggressive form of brain cancer.

FOX News Radio presents "John McCain - The Fighter" hosted by FOX News Channel's Lea Gabrielle: