(CNN) – Former Delaware Senate candidate Christine O'Donnell is not a witch and hated the commercial that stated that fact.
Promoting her new book, Troublemaker, on "Good Morning America" Tuesday, the tea party poster-candidate admitted that the infamous spot which attempted to distance her from past comments that she'd "dabbled into witchcraft" wasn't the best choice.
"I did hate it," she said.
Widely addressed in the book, O'Donnell noted that she also acknowledged the ad was a mistake on the campaign trail.
"It was taking us, once again, off message," she said.
But really, she had the best intentions.
After upsetting party-backed Mike Castle, a nine-term Delaware congressman and former governor, in the GOP Senate primary, O'Donnell said the National Republican Senatorial Committee balked in supporting her bid for the general election.
"We were trying to win over the NRSC," she revealed. "They were not getting involved."
The ad-where she told voters, "I'm not a witch. I'm nothing you've heard. I'm you."-was an effort to garner the committee's support. The NRSC did eventually contribute to O'Donnell's campaign.
O'Donnell, who has now run for the Senate in Delaware three times, chalked the widely-panned commercial up as a learning experience and dished out campaign advice for other political hopefuls.
"Anyone going forward in politics needs to take a huge lesson is this and that's if you've gotten this far, trust your gut," O'Donnell advised.