"Our book is tentatively entitled 'Shut Her Down,'" DeLay said. "It's about the revival of the Constitution and how to return power from all those federal programs to the states, which have sovereignty."
Corsi's book "Where's The Birth Certificate?" was released in May 2011. In it, Corsi claimed to demonstrate "conclusively that no legal authority has ever verified Obama's legal eligibility to be president" and that "a compelling body of evidence says Obama is not a natural-born citizen."
About three weeks before the book came out, President Obama released copies of his original, long-form birth certificate, proving that he was a natural born U.S. citizen. Still, Corsi has continued to persist with the conspiracy theory.
Corsi first received widespread recognition in 2004 when he wrote, "Unfit For Command: Swift Boat Veterans Speak Out Against John Kerry," which outlined disputed criticisms of then-presidential candidate John Kerry's military record.
Last week, Corsi released an e-book entitled "Who Really Killed Kennedy?" It argued the assassination of President John F. Kennedy was a "plot" involving the "highest levels of government," including then-Vice President Lyndon Johnson. Corsi described this plot as a "triumph" for the "New World Order."
Representatives for DeLay did not immediately respond to a request for comment on this story.