CNN'Manhattan Madam' to testify before grand jury in Mueller investigationCNNWashington (CNN) Kristin Davis, also known as the 'Manhattan Madam,' will testify before a grand jury in special counsel Robert Mueller's investigation on Friday, her spokeswoman Lainie Speiser told CNN. Davis met with Mueller's team last week for a ...Mystery surrounds former sex-ring operator's Mueller probe rolePolitico'Manhattan Madam' expected to appear before Mueller grand juryABC Newsall 32 news articles »