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Congress has conducted investigations of malfeasance since the 1790s.

How the Senate Investigates

Origins & Development

Permanent Subcommittee on Investigations

Selected Investigations   Selected List

Summaries & Related Resources of Selected Investigations

Joint Committee on the Conduct of War, 1861-1865
Titanic Disaster Hearings
The "Teapot" Dome Scandal, Apr 15, 1922
Committee on Banking & Currency Investigation of Wall Street (Pecora Investigation), 1932-1934
Special Committee to Investigate Air Mail & Ocean Mail Contracts,1933
"Merchants of Death" (Nye Committee), Sep 4, 1934
Special Committee to Investigate the National Defense Program (The Truman Committee) 1941-1948
Joint Committee on the Investigation of the Pearl Harbor Attack, 1945-1946
McCarthy Hearings
McCarthy and Army-McCarthy Hearings
Historical Highlights:
"Communists in Government Service," McCarthy Says Feb 9, 1950
A Declaration of Conscience Jun 1, 1950
"Have you No Sense of Decency?" Jun 9, 1954
Oral Histories:
Ruth Young Watt, Interview #3: Chairman Joe McCarthy (PDF)
Floyd M. Riddick, Interview #7: The McCarthy and Dodd Cases (PDF)
Keafuver Committee
Select Committee on Presidential Campaign Activities (The Watergate Committee), 1973-1974
Watergate Files (Gerald Ford Library)
Oral Histories:
William F. Hildenbrand, Interview #5 (PDF)
Chuck Ludlam on the Watergate Reform Bill
Francis R. Valeo on President Nixon's Impeachment Trial