What's he got...papers that prove she's a long-time, card carrying, member of the 700 club? Proof she had an affair with Newt Gingrich? Video showing she secretly admires George Bush and was an author of his Iraq war strategy?
"Nichols is dreaming"
Yep. If something bad enough was out there to take her down it would have already come out.
I suspect he's just using the line of some damaging info as advertising for his radio show, hence the suspense of making everyone wait for the prized info.