Presider Gideon Rose celebrates the winners of this year’s Arthur Ross Book Award: Jill Lepore, Andrew Roberts, and Max Hastings. Gold medalist Jill Lepore discusses why the United States needs a national history. Gold Medal: Jill Lepore for These Truths: A History of the United States Silver Medal: Andrew Roberts for Churchill: Walking With Destiny Bronze Medal: Max Hastings for Vietnam: An Epic Tragedy, 1945–1975