(CNN) – Christine O'Donnell, the surprise Republican Senate nominee in Delaware last year, has taken a pass on the opportunity to step back into the spotlight with an appearance on ABC's Dancing with the Stars.
In a statement, O'Donnell says she instead wants to devote her time to completing a book on the 2010 election.
"I'm honored to have been invited to participate in one of the few uplifting TV shows out there. The physical challenge made it all the more appealing. Meeting challenges head-on makes us stronger," she said. "Yet, for now, I have another challenge before me; to complete a book that tells the story of the 2010 election cycle with the dignity and respect it deserves."
"It is my hope that this book will serve as a clarion call to my fellow citizen-activists by taking the reader beyond petitions and protests and articulating not just what we should do, but why we must do it," she added.
The last high profile politician to appear on the hit TV show was Tom DeLay, the former House majority leader who has since been convicted of money laundering. He had to withdraw from the competition due to stress fractures in his feet.
"My goal is for the book and the new PAC I'm starting to serve as resources to activate and motivate those in this middle-class movement who worked so hard to launch the new revolution. If either of these projects were further along, I would be lacing up my dancing shoes right now."
Thanks in part to support from tea party activists and Sarah Palin, O'Donnell upset longtime congressman and former Delaware Gov. Mike Castle in last year's GOP Senate primary, before losing to Democrat Chris Coons in November's general election.