Roger Stone appears in court as acting Attorney General says Mueller probe is almost complete President Trump's longtime associate Roger Stone was in federal court Tuesday, where he pleaded not guilty to seven counts brought against him by special counsel Robert Mueller. Meanwhile, acting attorney general Matthew Whitaker said Monday the special counsel investigation is almost complete. CBSN legal contributors Keir Dougall and Rebecca Roiphe joins CBSN's "Red and Blue" to discuss the latest developments in the special counsel investigation.