rolling. >> yeah. certainly there's a lot more to be learned. in terms, joe, of the larger investigation, the senator's troubles are far from over. there are other allegations here, not just the prostitution allegations. >> that's true, anderson. there's a wide ranging investigation going on into the senator's dealings with his friend dr. solomon melgwynn, florida eye doctor, and alleged health care fraud. the senator rode on the doctor's private plane three times, didn't pay for two of the trips until it all spilled out into the open. so there's also a potential question for the ethics committee there. a lot for the investigators to chew on, anderson. >> carol, i appreciate you being on tonight and the work you and your colleagues have done. joe, you as well. the search for the women in question which came up empty, as did attempts to meet face to face with a shadowy tipster who was seemingly at the center of this story. listen. >> drew, this whole story is from an anonymously e-mailer.