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Acting U.S. Attorney General Matthew Whitaker testifying before House Judiciary Committee

Tracking House oversight in the Trump era


House Democrats in the 116th Congress have several oversight tools to hold the Trump administration accountable and investigate executive branch misconduct. Two of the most significant mechanisms include holding congressional hearings as well as sending letters to executive branch agencies and to individuals involved in executive branch operations.

Developed by Governance Studies, Brookings’s House Oversight Tracker monitors the actions being taken by House committees to conduct oversight of administration actions and policies since the 2016 election.

Search hearings or letters by clicking on the numbered icons below, or view all activity in a specific policy area by selecting one of the relevant boxes underneath. Click on any row to view additional information about each hearing/letter.

The data is updated frequently, and new oversight items will be added on a regular basis. For more information on the tracker, read Brookings’s methodology used to identify executive branch oversight in hearings and letters. For questions and feedback, please contact

Note: On Sept. 24, 2019, Speaker Nancy Pelosi formally announced that the House of Representatives would be “moving forward with an official impeachment inquiry.” Any oversight actions that specifically mention impeachment and took place after that date are indicated in red text below. Other potentially relevant activity that took place before Sept. 24 can be found under several investigation tags, including “Threats Against the Rule of Law,” “Mueller Report Follow-up,” and “Ukraine Whistleblower.”

These are the hearings that have taken place and the letters that have been sent between January 1 and March 1.


Filter House oversight activities by policy area:

Hearing / Letter
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