This is the story of George H. Mahon, a man who went to Congress in 1935, when the House Committee on Appropriations still allocated a small amount of money to buy military horses. Forty-four years later, when Mahon retired as Chairman of that same committee, the committee was debating funds to purchase a bomber capable of traveling at 2,000 miles an hour. With a career spanning nearly a half century--spanning almost the entire Cold War--Mahon grew...