Navigating congressional scrutiny with confidence

Political shifts, evolving oversight priorities, and heightened scrutiny of global business relationships are increasing the likelihood and complexity of congressional investigations.

We help you prepare for and respond to congressional inquiries and related proceedings, providing strategic guidance that addresses legal, regulatory, and reputational risk at every stage of an investigation. 

Legal services: Congressional Investigation

Our bipartisan team brings experience across both Republican and Democratic administrations with direct insight into how congressional investigations are initiated, conducted, and resolved. This perspective helps you understand investigative priorities, anticipate potential challenges, and develop effective strategies regardless of which party leads oversight.

With a holistic view across legal and reputational risk, we support you throughout the lifecycle of an investigation, from responding to subpoenas and document requests to preparing witnesses, managing parallel proceedings, and addressing media considerations. We also help you navigate cross-border exposure and public-facing challenges through an integrated approach.

From the first congressional inquiry through resolution, we help you understand what to expect at each stage of the process and make informed decisions with confidence.

Drawing on experience across both sides of the political aisle, we help you understand how investigations are developed and executed so you can respond strategically.

We guide you through every step of a congressional investigation, from document requests and subpoenas to witness preparation, parallel proceedings, and media strategy.

We help you manage legal and reputational risk through a coordinated strategy that aligns legal defense with public-facing response.

Through timely alerts, thought leadership, media commentary, and market insights, we help you stay informed and prepared as oversight priorities evolve.

Experience: Congressional Investigations

  • Advising clients on congressional investigations, federal inquiries, and related proceedings involving legal, regulatory, and reputational risk. 
  • Leveraging bipartisan experience to guide clients through oversight driven by either party and evolving political priorities. 
  • Jake Greenberg served as chief counsel for investigations for the House Oversight and Government Reform Committee, advising on high-profile investigations including matters related to the Mueller report, impeachment proceedings, and Biden family finances. 
  • Brandon Rios served as Counsel to the Vice President and Senior Associate Counsel, advising on sensitive investigations involving the White House, National Security Council, Department of State, Department of Defense, and Intelligence Community. 
  • Experience leading and supporting congressional investigations within the House Oversight Committee and state-level investigations within an attorney general’s office. 
  • Managing key elements of investigations including subpoenas, document productions, witness preparation, parallel proceedings, and media strategy. 
  • Supporting clients in high-profile matters, including preparation for sensitive congressional scrutiny. 

Leadership

Insights and resources

Congressional Investigations — Frequently Asked Questions

Congressional attention can arise from many sources: media or stakeholder pressure, allegations of consumer or employee harm, regulatory or state enforcement activity, federal funding, whistleblower activity, litigation, national security concerns, foreign relationships, supply-chain issues, or scrutiny of senior executives. Organizations in highly regulated, politically salient, or fast-changing sectors may face particular exposure.

An inquiry may begin with an informal letter, staff outreach, a request for a briefing, or public criticism. Even a request that appears narrow or voluntary can escalate quickly, making early assessment important.


Move quickly, but deliberately.

The immediate priorities are to preserve relevant information, establish privileged lines of communication, identify a core response team, assess the committee’s authority and objectives, and determine the likely path of escalation.

  • Preserve potentially responsive documents and data.
  • Centralize decision-making across legal, government affairs, communications, and business leadership.
  • Develop a preliminary factual and legal assessment, including potential parallel exposure.
  • Acknowledge the request and evaluate whether timing, scope, or format should be negotiated.
  • Avoid fragmented outreach or public statements before the response strategy is aligned.

Experienced congressional investigations counsel can help preserve options, establish credibility with committee staff, and prevent avoidable missteps at the outset.


Congressional investigations operate under different rules, incentives, and timelines. Committees may seek information for legislative, oversight, political, or public-facing purposes, and their procedures can vary substantially from court proceedings or agency investigations. Requests may be broad, deadlines compressed, and disputes shaped as much by committee dynamics and public attention as by legal doctrine.

The resulting exposure is rarely only legal. Reputational, policy, regulatory, commercial, and leadership risks may develop at the same time. A response that would be technically sufficient in litigation may therefore be strategically inadequate before Congress.


Yes.

Many matters begin with a voluntary request for documents, written answers, a briefing, or an interview. Depending on the response and the committee’s objectives, the inquiry may expand to compulsory process, transcribed interviews, depositions, public reporting, or a hearing.

Early engagement can help an organization understand the committee’s priorities, correct factual misunderstandings, negotiate scope and timing, and build credibility before positions harden or the matter becomes public.


The organization should establish a small, accountable core team with clear authority, privileged communication channels, and defined escalation procedures.

Legal strategy, congressional engagement, factual development, executive decision-making, and public communications should proceed from a common set of facts and objectives.

That coordination reduces inconsistent statements, duplicative work, privilege risks, and decisions that solve a short-term problem while creating exposure elsewhere. DLA Piper brings together congressional investigations, government affairs, white collar, national security, regulatory, litigation, and communications capabilities through one coordinated strategy.


Our bipartisan team includes former congressional investigators, senior congressional staff, and executive-branch officials who understand both the formal mechanics of oversight and the practical forces that shape an inquiry. We tailor the response to the matter’s scope, posture, and risk profile.
  • Risk assessment and fact development: Evaluating legal, political, reputational, regulatory, and operational exposure; conducting privileged reviews; developing and running red-teaming and tabletop exercises; and identifying potential pressure points.
  • Committee engagement: Responding to informal requests and subpoenas, negotiating scope and timing, and engaging relevant majority and minority offices.
  • Document response: Establishing preservation, review, privilege, and production processes calibrated to the request and the organization’s operations.
  • Witness and communications strategy: Preparing executives for briefings, interviews, depositions, and hearings while aligning fact-based messaging across stakeholder audiences.
 

Preparation should begin as soon as testimony becomes a realistic possibility—not after a hearing date is announced.

Effective preparation requires command of the facts, clarity about the committee’s objectives and procedures, disciplined messaging, and practice under realistic questioning.

DLA Piper helps witnesses anticipate majority and minority lines of inquiry, pressure-test answers through simulations, understand the legal and reputational implications of testimony, and prepare for the demands of public and nonpublic proceedings.


Parallel proceedings require a unified strategy.

Documents, testimony, factual positions, and public statements developed for Congress may affect criminal, civil, regulatory, employment, or securities matters—and information disclosed in one forum may travel quickly to another.

We coordinate congressional strategy with white collar, regulatory, litigation, national security, and other workstreams so that timing, privilege, factual development, and communications decisions reflect the full range of exposure.


Organizations with foreign operations, investors, suppliers, universities, data, or business partners may face questions involving national security, foreign influence, sensitive technology, sanctions, export controls, supply chains, forced labor, cybersecurity, federal funding, or ownership and governance.

The response may also be constrained by foreign privacy laws, blocking statutes, data-transfer rules, divergent privilege standards, and local legal or cultural considerations. DLA Piper’s global platform allows US congressional strategy to be coordinated with relevant legal and business requirements across jurisdictions.


Preparation can materially improve speed, consistency, and decision-making when an inquiry arrives.

Depending on the risk profile, useful measures may include:

  • Assessing issues, sectors, transactions, and relationships that may attract congressional attention.
  • Mapping committee jurisdiction, political drivers, stakeholders, and potential escalation paths.
  • Establishing privilege, preservation, governance, reporting, and communications protocols.
  • Conducting tabletop exercises, red-teaming likely allegations, and preparing executives for high-risk scenarios.

Early assessment can preserve options and reduce the risk of avoidable escalation. DLA Piper helps organizations evaluate exposure, build practical readiness plans, and respond with a coordinated strategy when congressional attention emerges.


Awards and recognition