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Perrin Cooke

Perrin Cooke is special counsel in the firm’s Washington, DC office and a member of the White Collar Defense and Investigations, Election and Political Law, and Public Policy Practice Groups, with a focus on assisting clients responding to high-profile congressional investigations.

Drawing on his experience in government, most recently as Deputy General Counsel at the U.S. Department of Health and Human Services, Perrin advises clients on matters presenting significant legal, political, and reputational risks. During the Biden Administration, Perrin served as the lead attorney on oversight matters across two federal agencies. In this capacity, he guided the development of strategic responses to congressional requests and subpoenas touching on a range of topics. Through his work in both government and private practice, Perrin has extensive experience preparing witnesses – including numerous corporate executives, cabinet secretaries, and other senior government officials – appearing in briefings, transcribed interviews, and hearings before congressional oversight committees.

In addition to his investigations practice, Perrin advises clients – including political campaigns, advocacy organizations, trade associations, and corporations – on a wide variety of election and political law compliance matters.

Congressional investigations are now a common reality across corporate America, and companies large and small are therefore more focused than ever on the potential effects of congressional inquiries into business activities, goals, and strategies. In this new reality, the most sophisticated companies, private equity firms, and other corporate players are

Continue Reading A Potentially Overlooked Risk Area: Incorporating Congressional Investigations into Transactional Due Diligence

If the upcoming midterm elections result in a Democratic majority in the House next year, companies, organizations, and individuals can expect a new wave of congressional investigations, hearings, and oversight, with a familiar focus on the Trump administration and an emphasis on a variety of private sector targets. The Democratic

Continue Reading Democratic Investigations Agenda is Coming Into Focus

Among a wave of noteworthy results in this fall’s off-year elections, Zohran Mamdani’s selection as the next Mayor of New York City was perhaps the most closely watched and widely discussed. Though much of that commentary has focused on the new Mayor himself, the New York City Council appears poised

Continue Reading New York City Council Poised to Reinvigorate Investigative Authorities and Issue Subpoenas to the Private Sector

It may begin with an unusual media inquiry or a sudden spike in interest on social media. Just as often, it starts with a non-public request for documents or other evidence. Your boss or your staff have been accused of wrongdoing, and it falls to you to lead the response.

Continue Reading Handling Investigations of Members of Congress and Congressional Staff: A How-To Guide for Chiefs of Staff

Following a string of high-profile investigations targeting Members of Congress on both sides of the aisle, congressional ethics investigations are more visible than ever. Indeed, as we recently explored, the House Ethics Committee in particular may be moving toward a more active and transparent enforcement posture, with its

Continue Reading Congressional Ethics Investigations: An Overview of Processes, Challenges, and Implications for Private Actors

On September 16, 2025, Judge Trevor McFadden of the U.S. District Court for the District of Columbia dismissed Dr. Ralph de la Torre’s effort to bar criminal or civil enforcement of the Senate’s resolutions holding him in civil and criminal contempt of Congress.  In bringing his pre-enforcement challenge, Dr. de

Continue Reading Federal Court Dismisses Pre-Enforcement Challenge to HELP Committee Subpoena, Underscoring Limited Options for Congressional Subpoena Targets  

Federal contractors, grantees, borrowers, and others receiving federal funds face a variety of restrictions on their use of those funds for political purposes, including for lobbying. A new presidential memorandum issued last week by President Trump highlights one of those restrictions, 31 U.S.C. § 1352, also known as the

Continue Reading Administration Targets Lobbying by Federal Grantees with New Presidential Memorandum

While historically criticized for inconsistency or opacity, the House Ethics Committee appears to be moving toward a more active and transparent enforcement posture.  Last week, the Committee adopted two reports finding Rep. Alexandria Ocasio-Cortez (D-NY) and Rep. Mike Kelly (R-PA) violated House ethics rules.  The reports together serve as a

Continue Reading Recent House Ethics Committee Actions Signal Expanding Scope of Enforcement

At the start of each Congress, the House and Senate, along with the various committees in each chamber, adopt internal rules that govern their operations. Though many such rules remain unchanged from one Congress to another, the continued emphasis on congressional investigations across Capitol Hill lends new significance to even

Continue Reading Congressional Investigations and the Rules of the 119th Congress

As we highlighted in a prior post, in February, President Trump signed an executive order that expanded the President’s authority over independent agencies within the executive branch that could have important effects on future rulemakings and advisory opinions from the Federal Election Commission (FEC or “Commission”).  In particular, we

Continue Reading Though Unsuccessful, Challenge to Trump Executive Order Yields Potentially Noteworthy Representations Regarding FEC Independence