Portraits in Oversight
Want to know what is meant by the term “oversight”? To help explain, here are some short portraits of important congressional oversight investigations as well as some key past figures in oversight. Join us for a quick history walk!


Senator Carl Levin
Carl Levin, inspiration for the Levin Center for Oversight and Democracy, was a champion of fact-based, bipartisan, high-quality oversight investigations by Congress. His inquiries spanned a wide array of subjects including government mismanagement, money laundering, offshore tax abuse, corporate misconduct, torture of detainees, military effectiveness, and more, producing not only meaningful hearings and reports but also new laws to address identified problems. His motto: “Good government requires good oversight.”
More Portraits
1

Congress’ First Investigation:
Gen St. Clair’s Defeat
The very first oversight investigation undertaken by the U.S. Congress occurred in 1792, just three years after the U.S. Constitution took effect. The inquiry delved into a significant U.S. military defeat, while also setting important precedents for future congressional oversight investigations.
2

Joint Committee
on the Conduct of the Civil War
During the Civil War, from December 1861 to May 1865, the U.S. Congress convened a special joint investigative committee to inquire “into the whole conduct of the war.” Led by Republicans but with bipartisan support, the committee spent nearly four years compiling evidence, holding hearings, issuing reports, and demanding reforms.
3

Congress Investigates
KKK Violence During Reconstruction
During the 1870s, in a period now known as Reconstruction, Congress launched two extensive investigations into a frightening new organization, the Ku Klux Klan, exposed its role in escalating racial violence in the South, and supported legislative and administrative actions to curb its brutality and lawlessness.
4

Thomas Walsh and the Teapot Dome Investigation
Thomas Walsh represented the state of Montana in the U.S. Senate from 1913 to 1933. During his tenure, he played a critical role in one of the most important Senate investigations into federal bribery, corruption, and a failure to prosecute, as well as the right of Congress to investigate and expose wrongdoing.
5

Ferdinand Pecora and the 1929 Stock Market Crash
Congressional members of both parties spent the years following the Stock Market Crash of 1929 and the ensuing Great Depression attempting to investigate the causes of the financial devastation, with little success until the advent of the Pecora Investigation.
6

Harry Truman and the Investigation of Waste, Fraud, & Abuse in World War II
Harry S. Truman, though best known as the 33rd President of the United States, gained initial prominence in national politics as a Missouri senator from 1935 to 1945. His fame arose from his oversight efforts related to World War II.
8

Abraham Ribicoff and the Traffic Safety Hearings
Abraham Ribicoff led a Senate oversight investigation that not only fundamentally changed how the federal government handled motor vehicle safety problems, but also helped save millions of lives.
9

The Watergate Hearings
The Senate investigation into the Watergate scandal is one of the best-known examples of congressional oversight. It is a story of how Members of Congress, despite differing parties, opinions, and political ambitions, ultimately came together at a time of crisis in the best interests of the country.
10

Frank Church and the Church Committee
Frank Church led one of the most important oversight investigations ever undertaken by Congress into covert operations by the U.S. intelligence community. His work began on January 27, 1975, when the Senate voted 82-to-4 to form the U.S. Senate Select Committee to Study Governmental Operations with Respect to Intelligence Activities; it would come to be called the Church Committee, after its chair.
11

Congress and the Love Canal Disaster
Love Canal was a dumping site for Hooker Chemical Company’s industrial waste from 1942 to 1953. Over the next 20 years, the toxic chemicals leached into the soil and water of the surrounding neighborhoods, causing severe health problems. In 1979, multiple congressional oversight investigations exposed the deadly impact of that environmental disaster and led to enactment of the Superfund Program to identify and clean up toxic sites.
12

Rep. John Dingell, Jr.
John D. Dingell, Jr. holds the record as the longest serving member of the U.S. House of Representatives with more than 59 consecutive years of service representing southeast Michigan. He also chaired the House Energy and Commerce Committee, and its Subcommittee on Oversight and Investigations, holding hard-hitting investigations that spurred important legislative reforms.
13

The Iran-Contra Affair
In the summer of 1987, televised congressional hearings exposing the Iran-Contra scandal gripped the nation, disclosing dramatic facts involving terrorists, American hostages, weapons sales, taxpayer dollars, and covert operations, as well as an ongoing struggle between the executive and legislative branches over who controls U.S. foreign policy and intelligence activities.
14

Henry Waxman and Big Tobacco
Rep. Henry Waxman used congressional oversight to wage a 25-year effort, from 1982 to 2009, to expose and mandate safeguards against the health hazards caused by tobacco products. His sustained oversight effort helped save millions of Americans from tobacco-related disease and disability as well as billions in taxpayer dollars that would have otherwise been spent on health care costs.
15

Senator Tom Coburn
Dr. Tom Coburn was an Oklahoma family physician and obstetrician who served the Sooner State in the House of Representatives from 1995 to 2001 and the Senate from 2005 to 2015. Earning the nickname “Dr. No” for introducing at least 1,000 amendments opposing government spending, he also published more than 50 oversight reports during his decade in the Senate.
16

Investigation into 9/11 Terrorist Attack
On September 11, 2001, the Al-Qa’ida terrorist organization hijacked four commercial airplanes and flew two into the World Trade Center buildings in New York and one into the Pentagon in Washington, D.C. The final plane crashed in a field in Pennsylvania. The deadliest terrorist attack on American soil, resulting in the deaths of 3,025 people, led to the first ever bicameral investigation by the two standing intelligence committees in Congress.
17

Congress and the Enron Scandal
On December 2, 2001, despite claiming assets in excess of $60 billion and revenues exceeding $100 billion, Enron Corp. filed for Chapter 11 bankruptcy, becoming the then-largest bankrupt corporation in U.S. history. The resulting economic dislocation sparked one of most extensive bipartisan, bicameral oversight efforts by Congress in years, eventually leading to landmark legislation.
18

John McCain and the Abramoff Tribal Lobbying Scandal
This two-year investigation led by Sen. John McCain exposed how Native American tribes were victimized by a web of corrupt lobbying practices by Washington lobbyist Jack Abramoff and others, spurring high-profile resignations, prison sentences, and lobbying reforms.
19

Rep. Elijah E. Cummings
For 23 years, Elijah E. Cummings, the son of sharecroppers, represented Maryland’s 7th district in the U.S. House of Representatives. Elected in 1996, he served on the Committee on Oversight and Government Reform from his earliest days in Congress until his death in 2019, becoming its Ranking Minority Member in December 2010 and Committee Chair in his last year.