edwards' child. edwards at first denied having the affair and then denied being the father. but last year he finally admitted it. the story reached a sleazy low point when a videotape surfaced that is reported to show edwards and hunter having sex. the tape wound up in the hands of former edwards staffer andrew young, who turned it over to a court after rielle hunter filed a lawsuit. it took eight months before edwards' wife, elizabeth, learned the extent of the affair. before she died last year, she went public with her feelings in a book and numerous tv appearances. >> maybe it was that 30-year investment that i had in my marriage. maybe i could not separate the flawed man before me from the boy i fell in love with in 1975. it does not matter now. >> reporter: the death of elizabeth edwards might have been the end of the story, except for the fact that there has yet to be a full public accounting. edwards raised $49.3 million in his bid for the white house. where some of it came from and