This is not simply the memoir of a cancer survivor. Nor is it just the memoir of a respected senator. This is an unprecedented glimpse into a man who is both. It is inspiration for people of all political persuasions; of how to persevere and succeed---despite what the doctors may say, despite what the tests might show.

In early 2004, Senator Specter was in the midst of a grueling primary race, facing significant opposition from the right as he worked to win his party's nomination to run for reelection for his Pennsylvania senate seat. It would be the most difficult election in his...