How do you know that? Is there some special LDS magic at work here?
It’s apprently been reported that Edwards told his wife about the affair in 2006, after it ended. He’s run for office, with her at his side, since then, helping to promote his image as an all-American family man.
It's reported she knew of the affair.
And she denied knowing about it in interviews.
So, Elizabeth Edwards is a liar.