@msolga,
John Edwards was the Democratic vice presidential candidate in 2004 (with John Kerry, who was the presidential candidate), and was a serious contender for the Democratic presidential nomination in 2008. For quite a while there, he and Hillary Clinton were seen as the top two, before Barack Obama emerged as a real threat to both of them.
When John Edwards was campaigning for the presidency, he had already had an affair with a woman named Rielle Hunter, which John Edwards' wife Elizabeth knew. They went ahead with the candidacy.
Some things that are coming out now (true or not? who knows) include that there was a Edwards-Hunter sex tape in existence, that was held by a top aide of Edwards' named Andrew Young.
What we DO know -- after a whole lot of denials from the Edwards camp -- is that John Edwards fathered a child with Rielle Hunter and that Andrew Young agreed to step in and claim that HE was the father (not Edwards).
Meanwhile there were ugly payoffs here and there.
Sordid sordid sordid.
Meanwhile #2, Elizabeth Edwards is a cancer survivor and right around when John Edwards was fathering a baby with Ms. Hunter, Elizabeth's cancer came back and is incurable. At the time it looked like she would die soon. As of now she is at least minimally OK.
However the sympathy she garners for that and for being cheated upon is mitigated somewhat by the fact (?) that she apparently was absolutely horrible to John for a long time, belittling him in front of people, calling him a dumb hick, etc., etc. And generally seems to be a far less-nice person than previously thought (selfish, power-hungry, etc.)
So.
Aren't you glad you asked?