Congressional oversight committees have sought and obtained White House documents and testimony on a wide variety of sensitive subjects during Republican and Democratic administrations. Types of White House information provided to congressional investigators include:
The volume of White House communications provided to Congress has been large. For example, the House Government Reform and Oversight Committee received over 2 million pages of documents during its investigations of the Clinton Administration and the Democratic Party, including over 150,000 pages of White House documents. In that Committee’s campaign finance investigation alone, 49 White House officials testified before the Committee in depositions or hearings, including the White House Chief of Staff and White House Counsel. The Senate Select Committee on Secret Military Assistance to Iran and the Nicaraguan Opposition, and the House Select Committee to Investigate Covert Arms Transactions with Iran, known as the “Iran-Contra Committees,” received 70,000 pages of documents from the Reagan White House including internal memoranda among top national security aides.