As for Chelsea being the result of said rape...I seem to remember Bill telling one of his other victims that he was sterile (due to a childhood illness) so not to worry.
Then there is the problem of who Chelsea looks like...and it sure ain't Bill.
Remember the Danny Williams affair. Clinton supposedly permitted a DNA test to prove he was not Danny's father. If I were Chelsea I would get a DNA test and compare it to Clinton's. And Webb's.
You were thinking the same thought I was. So, which story is true. Practically, I think this story is a downer, because it makes Hillary a victim and she gains a sympathy factor. It's better simply to expose her views, which are the same as Howard Dean. That's enough to do her in.