The Obama campaign has a video in which several women claim to be Republicans who have switched and will vote for Obama. It turns out at least two of the women are long-time Democrat activists lying through their teeth; they brag about starring in the ad on their Facebook pages.
See this Power Line posting for details. Don't hold your breath waiting for the MSM to cover this con job. Perhaps they are correct: if politicians' lips are moving, don't we assume they are lying?