Basically she was running for senate to replace Vice President Bidens seat, and while campaigning, a video of her on Bill Maher leaked from years before.
O’DONNELL: I dabbled into witchcraft. I never joined a coven. But I did, I did. … I dabbled into witchcraft. I hung around people who were doing these things. I’m not making this stuff up. I know what they told me they do..
So she had to pull some damage control, and made ad anvertisement.