Unfit for Command: Swift Boat Veterans Speak Out Against John Kerry is a 2004 book about then U.S. Presidential candidate John Kerry by John O'Neill and Jerome Corsi published by Regnery Publishing. The book was released at the time that ads by Swift Vets and POWs for Truth were being aired on U.S. television.

Jerome Robert Corsi is an American conspiracy theorist and author. His two New York Times best-selling books, Unfit for Command (2004) and The Obama Nation (2008), attacked Democratic presidential candidates and have been criticized by opposition.