Notice & Comment

Free ABA AdLaw Webinar, 5/26 noon: Congressional Investigations: Fundamentals and Recent Developments

On Wednesday, May 26, 2021, at noon eastern, the ABA Adminstrative Law Section will be hosting a free webinar entitled Congressional Investigations: Fundamentals and Recent Developments. Registration is available here.

In this webinar, you will hear the perspectives of current and former investigators about how congressional investigations work, their importance to Congress, the authorities that some or all committees have and exercise when conducting investigations, and recent developments in the field. The panelists will discuss such recent developments as the Mazars and McGahn cases and their impacts on the balance of power between Congress and the Executive Branch and on congressional investigations more broadly.


  • Michael Bopp, Partner, Gibson Dunn, formerly Staff Director and Chief Counsel, Senate Homeland Security and Governmental Affairs Committee


  • Christopher Armstrong, Partner, Holland & Knight. Former congressional staffer as Chief Oversight Counsel to Chairman Orrin Hatch and Investigative Counsel to Ranking Member Charles Grassley on the Senate Finance Committee, as well as Oversight Counsel to Chairman Dave Camp on the House Ways and Means Committee
  • Ashley Hurt Callen, Deputy Staff Director, House Committee on Oversight and Reform
  • Stacia Cardille, Director and Associate General Counsel, Global Policy Legal, Twitter. Stacia previously served as Democratic Chief Counsel for the Senate Committee on Homeland Security and Governmental Affairs, the Democratic Chief Counsel to the House Committee on Energy and Commerce, and counsel to the House Committee on Oversight and Government Reform.
  • Daniel Goshorn, Chief Investigative Counsel, Senate Finance Committee
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