Called "the nation's leading Presidential historian," by Newsweek, Beschloss has made history himself, serving as the first Presidential Historian for NBC News—the first time any major network has created such a position. Appearing regularly on Meet the Press, The Today Show, and all NBC network programs, he provides expert analysis of the executive branch and is often featured on PBS's The NewsHour with Jim Lehrer. In 2005, he won an Emmy for his role in creating and hosting the Discovery Channel series Decisions that Shook the World.
His New York Times best-seller, The Conquerors: Roosevelt, Truman and the Destruction of Hitler's Germany, 1941-1945, was lauded as "vigorously written" about "history as it was spoken at the time, and there is not a dull page," in a front-page review in the New York Times Book Review. Amazon.com also praised it as one of its best-selling history books of the year.
Beschloss's first book, Kennedy and Roosevelt: The Uneasy Alliance, started as his senior honors thesis at Williams College. His book, Mayday: Eisenhower, Khrushchev and the U-2 Affair, was called "a grand narrative...crowded with well-drawn portraits" by the New Yorker. The Crisis Years: Kennedy and Khrushchev, 1960-1963, which won the Ambassador Book Prize was heralded by the New Yorker as the "definitive" book on John F. Kennedy and the Cold War.