About this recording 2–20 President Richard M. Nixon White House operator April 20, 1971 White House Operator Richard M. Nixon Conversation No. 2-20 Date: April 20, 1971 Time: Unknown between 7:43 pm and 7:45 pm Location: White House Telephone The President talked with the White House operator. Call to Charles W. Colson Secret White House Tapes | Richard M. Nixon Presidency 2–20 Backward Play Stop Forward Download audio Previous 482–9 Next 485–1 More Richard M. Nixon Recordings View all Richard M. Nixon tapes 485–1 audio icon 252–1 audio icon 484–1 audio icon 252–10 audio icon 484–10 audio icon 252–11 audio icon 484–11 audio icon 252–12 audio icon 484–12 audio icon 252–13 audio icon