New York State Assemblyman, Assistant Secretary of the Navy, New York City Police Commissioner, Governor of New York, Vice President and, at forty-two, the youngest President ever-in his own words, Theodore Roosevelt ?rose like a rocket.” He was also a cowboy, a soldier, a historian, an intrepid explorer, and an unsurpassed environmentalist-all in all, perhaps the most accomplished Chief Executive in our nation's history. In Lion in the White House:...