For almost every delivered speech, there exists an undelivered opposite. These "second speeches" show what could have been and, in the process, create an alternative history of key twentieth- and twenty-first-century events. In Undelivered, speechwriter Jeff Nussbaum presents the most notable speeches never heard, including Dwight Eisenhower's apology for a D-Day failure, John F. Kennedy's announcement of airstrikes on Cuba, Richard Nixon's refusal to resign the presidency, and Hillary Clinton's acceptance for a 2016 victory, among others. In each case, Nussbaum shares the behind-the-scenes drama taking place at these moments of choice and consequence. Examining these speeches and the historic moments that almost came to be not only illuminates our past; the almost haunting historical parallels also inform our present.