As historian and author John W. Malsberger writes in The General and the Politician: Dwight Eisenhower, Richard Nixon and American Politics, no two political figures could have taken more different routes to the Presidency than did America's 34th and 37th Commanders in Chief. Thrown together largely for political convenience by a Republican party struggling to reinvent itself through years of post-Depression, Democratic dominance, Dwight Eisenhower...