The New York Daily News is reporting that there is a John Edwards / Rielle Hunter sex tape floating around.

St. Martin’s Press just inked a deal with Andrew Young, a former John Edwards aide.  According to a source that has seen Young’s book proposal, Young, says the ex-senator and his former mistress, Rielle Hunter, once made a sex tape. He goes on to say that contrary to his public statement last year, he is not the father of Hunter’s infant daughter — Edwards is. Edwards has denied that allegation. Young’s belief in Edwards ran so deep that he agreed to take the fall for him and went as far as 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.

John Edwards & Andrew Young

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. According to the 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.

Elizabeth Edwards is said to hold Young partly to blame for her husband’s affair, since Young knew it was going on and sometimes used his cell phone to conference the senator and his girlfriend. Young has told friends that, in revenge, Elizabeth arranged for the media to learn about a youthful misdemeanor in which Young was arrested for stealing a sign from a biker bar.

Young’s book proposal, which one editor said “was impossible to put down,” also contends that Senator Edwards frequently clashed with running mate John Kerry during their 2004 race for the White House. And before Edwards owned up to his affair with Hunter, Young says he told him that Barack Obama had promised he’d make him attorney general if he didn’t pick him as his 2008 running mate.

Elizabeth Edwards and Young’s agent had no comment. An e-mail to John Edwards’ assistant wasn’t returned. Hunter couldn’t be reached.