2026 Truman Book Award Winner Revisits Truman and the Bomb | May 20, 2026
The Most Awful Responsibility Offers a “Bold and Arresting Interpretation” of Truman’s Role in the Use of Atomic Weapons
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KANSAS CITY, MO—Alex Wellerstein has been named winner of the 2026 Harry S. Truman Book Award for his acclaimed 2025 book, The Most Awful Responsibility: Truman and the Secret Struggle for Control of the Atomic Age (HarperCollins). The honor carries with it a $5,000 cash award.
Wellerstein, a professor of science and nuclear technology at the Stevens Institute of Technology, navigates a fascinating journey through well-traveled and much-contested scholarly terrain. The decision to use the atomic bomb on Hiroshima and Nagasaki has long divided historians, who since shortly after the bombs were dropped have explored the moral and strategic dimensions of their use to end a world war and, some argue, to start a cold one.
Drawing extensively on the archives of the Harry S. Truman Presidential Library, Wellerstein revisits a paper trail that historians have often cited, but he interprets the documents differently. The result is a bold and arresting interpretation of the multiple paradoxes surrounding Truman and the use of atomic weapons. Perhaps chief among these is that Truman himself played less of a role in the decision to use it than we have previously understood. Rather, Wellerstein finds, President Truman played a role—but not the central role—in the decision to use atomic weapons, owing to his abrupt and late entry into allied diplomacy and war-making.
Moreover, Wellerstein argues that Truman did not fully understand the nature of the decision at that time it was made. His realization after the fact leads to an equally notable paradox: Truman, the original Cold War warrior– builder of the containment doctrine, supporter of the development of the hydrogen bomb and of its testing on Pacific islands after the war– “plainly detested the idea of using atomic weapons,” in Wellerstein’s words, refusing to use them in Korea only five years after Hiroshima. In the interim, Truman wrested their control from military to civilian authority, and in the aftermath avoided the brinksmanship of his successor in the presidency.
Wellerstein calls Truman “earnest, humane, and deeply unsure of the right path forward, frequently making difficult decisions with limited foresight, but tending to hew to values that are fairly admirable in their nature.” In his portrait of a president wrestling with a matter more grave than faced by virtually any individual to have ever walked the earth, the author expresses his hope that “the reader will find [this] version of Truman to be exceptionally human.”
The Truman Book Award committee, chaired by Jason Parker, Ph.D. (Texas A&M University), finds that in this he succeeds, and the Truman Library Institute is proud to recognize and congratulate Alex Wellerstein on his achievement.
“It’s a tremendous honor to receive this award, especially given that there were many other excellent books and authors that were in the running for it this year,” Wellerstein said. “I am especially humbled given that my interpretation of Truman is quite different from the standard ones. I believe that there is much to still learn from studying Truman and his presidency with fresh eyes, and that the final word on his legacy has not yet been written. I am greatly encouraged by this support.”
Established in 1967, the Harry S. Truman Book Award recognizes the best book published within a two-year period dealing primarily and substantially with the life or career of Harry S. Truman between 1945-1953. Recent awardees include Steve Drummond, Christian F. Ostermann, Derek Leebaert, Kevin Peraino and Michael Neiberg. The biennial award is generously endowed by Mary and John Hunkeler.
Watch for details on the forthcoming book award event to be held in Kansas City, Missouri. For event alerts, subscribe to TRU E-News here.
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