High Quality Content by WIKIPEDIA articles! Cheryl D. Mills (born 1965) is an American lawyer, administrator, and corporate executive. She is most known for being deputy White House Counsel for President Bill Clinton, whom she defended during his 1999 impeachment trial. She worked for New York University as Senior Vice President. She served as Senior Adviser and Counsel for Hillary Rodham Clinton`s 2008 presidential campaign and is considered a member of "Hillaryland". She currently serves as Counselor and Chief of Staff to Secretary of State Hillary Clinton.