Christine O'Donnell has admitted that her infamous "I'm not a witch" ad was a big mistake.
"Our intention was to kill it. And that's not what happened," she explained.
"It" is the uproar over embarrassing footage from 1999, in which O'Donnell admits she "dabbled in witchcraft."
During an appearance on Good Morning America, the U.S. Senatorial candidate from Delaware showed a sense of humor when asked what she'll wear on Halloween.
"I certainly am not going to be a witch...I was thinking about going as Dorothy," she said.