The latest John Edwards revelations are mind-blowing:
From Andrew Young's book proposal:

Young says that his belief in Edwards ran so deep that he agreed to take the fall for the candidate, inviting the pregnant Hunter to live with him, his wife, Cheri, and their three children. Later, after Hunter delivered the baby, Young and his family moved to a different home in California.

While he was unpacking, Young discovered a videocassette, according to the book pitch. Hunter had been hired by the Edwards campaign to videotape the candidate's movements, but this one is said to have shown him taking positions that weren't on his official platform.

The purported sex tape confirmed to Hunter that Edwards was even more reckless than he thought.

According to our source, Hunter confided to Young that she and Edwards talked about getting married should the candidate's cancer-stricken wife, Elizabeth, pass away, even discussing what music they'd play at their wedding.

http://www.nydailynews.com/gossip/2009/06/28/2009-06-28_aides_tale_of_john_edwards_sex_tape.html
There's more at the NYDN link....