"If I had not spent my year in North Dakota, I would never have become President of the United States," declared Theodore Roosevelt. The future statesman took his first steps toward the highest office in the land in the Dakota Badlands of the 1880s, where he began his transformation from aristocrat to democrat. Roosevelt left his home in the East as Theodore, but he returned as "Teddy," a rugged outdoorsman and soon-to-be hero of the Rough Riders....