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MoFo's congressional investigations team is experienced in handling and resolving high-profile and complex issues. Learn more.

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Congressional Investigations

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Former DOJ Assistant Attorney General, Carlos Felipe Uriarte, to Lead Morrison Foerster’s Congressional Investigations Practice

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Joseph Folio is a trial lawyer and partner in Morrison Foerster’s Global Antitrust Law, Congressional Investigations (co-chair), Crisis Management, and Privacy + Data Security Groups, with more than a dozen years of experience leading complex government investigations and high-profile litigation.Joe has extensive experience in cartel investigations, congressional investigations, and complex civil litigation. Having served in all three branches of the federal government, and with his experience in both criminal and civil litigation, Joe is able to leverage his insider knowledge across a variety of enforcement perspectives to guide clients through difficult cases. He is also a member of our global ESG + Sustainability steering committee.As a prosecutor in the Antitrust Division of the U.S. Department of Justice (DOJ), he investigated companies and individuals involved in domestic and international antitrust cartels. Among them, he oversaw all aspects of the investigation into generic pharmaceuticals as the case’s chief of staff, including the handling of the parallel multidistrict litigation case brought by several state attorneys general and private plaintiffs. He also prosecuted and investigated cases in the international freight forwarding industry and cases involving bid rigging in state infrastructure projects.Prior to joining Morrison Foerster, Joe served as Chief Counsel for the Committee on Homeland Security & Governmental Affairs, the chief oversight committee of the U.S. Senate. In this position, he oversaw a variety of investigations, including the coordination of investigations with other Senate and House committees with overlapping jurisdictions. He also advised the committee on all policy issues falling within its broad jurisdiction, including cybersecurity, border security, domestic terrorism, election security, supply chain security (including 5G policy), and reforming the National Emergencies Act. Joe advised committee members on oversight of the Cybersecurity and Infrastructure Security Agency (CISA) within the Department of Homeland Security, legislation providing CISA with administrative subpoena authority, the creation of the National Cyber Director, and oversight of government and private efforts to protect against and respond to cyber breaches and ransomware attacks.While at the Federal Programs Branch of the DOJ’s Civil Division, Joe handled complex, high-profile litigation, focusing largely on national security matters, and his clients included the FBI; the Departments of Defense, Homeland Security, and State; and several members of the U.S. Intelligence Community. He also represented the Export-Import Bank against multiple administrative and constitutional challenges. Due to the cutting-edge nature of this litigation, he has experience navigating the inter-agency process when cases raise novel legal or policy issues that must be resolved at the highest levels.Joe received his B.A., magna cum laude, in philosophy and government from Georgetown University; M.A. with honors in national security studies from Georgetown University; and J.D., cum laude, from the George Mason University School of Law. After graduating from law school, Joe clerked for the Honorable Richard L. Voorhees in the U.S. District Court for the Western District of North Carolina.<h4>Representative Matters</h4>Antitrust<ul><li>Representing a major U.S. healthcare company in a criminal antitrust investigation of alleged “no-poach” conduct.</li><li>Representing a senior executive of an international company in a U.S. criminal cartel investigation.</li><li>Representing Nexstar Media Group in a putative class action alleging that certain media companies conspired to fix the prices of local television advertising.</li></ul>Congressional Investigations<ul><li>Representing Andy Karsner, a member of ExxonMobil’s board of directors, in response to a high-profile House Oversight and Reform Committee investigation regarding the role of the fossil fuel industry in addressing climate change, including preparing him to testify before the committee.</li><li>Representing a former government official who testified before the House Select Committee to Investigate the January 6th Attack on the U.S. Capitol.</li><li>Representing a Fortune 100 company responding to inquiries from committees and members regarding its policies and practices.</li></ul>

Joseph Folio III

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Carlos Felipe Uriarte, former Assistant Attorney General for the Office of Legislative Affairs at the Department of Justice (DOJ), is co-chair of Morrison Foerster’s Congressional Investigations practice. Carlos draws on his extensive experience conducting and defending against congressional investigations, working at the highest levels of the DOJ and in Congress, and serving in senior in-house compliance and regulatory roles to represent clients facing complex and high-stakes government investigations and enforcement actions. Following his nomination by the president and unanimous confirmation by the Senate, Carlos served as Assistant Attorney General for the Office of Legislative Affairs from 2022 to 2025, leading a team of approximately 50 legal professionals responsible for all aspects of the DOJ’s critical and high-stakes relationship with Congress. A member of the Attorney General’s senior leadership team, Carlos set legislative strategy for the Department, regularly advised DOJ leadership on complex legal and policy objectives, and orchestrated the Department’s responses to the highest profile oversight and investigative requests from Congress. In this role, Carlos testified before the House and Senate Judiciary Committees, met regularly with lawmakers on the Intelligence, Financial Services, Banking, and Commerce committees on both sides of the Capitol, and negotiated high-stakes matters directly with congressional leadership. Carlos has played a pivotal role in many of the highest-profile congressional inquiries over the past two decades. His career in Congress included serving as Chief Counsel for Investigations on the House Select Subcommittee on the Coronavirus Crisis, as Counsel on the House Committee on Oversight and Government Reform, and as judiciary and oversight counsel to Representative Judy Chu. Additionally, Carlos held significant roles in the executive branch, where he served as Associate Deputy Attorney General in the Office of the Deputy Attorney General at the DOJ, and as Senior Counsel in the Office of the Secretary of the Interior. During law school, Carlos was a law clerk to Senate Judiciary Committee Chairman Arlen Specter. Additionally, Carlos has senior in-house experience building and leading internal compliance functions and engaging with government regulators. Before rejoining the DOJ in 2022, Carlos served as a senior compliance executive at a Fortune 100 financial institution and led the legal regulatory team at an innovative and venture-backed healthcare technology startup. Carlos clerked for the Honorable Juan R. Sánchez of the U.S. District Court for the Eastern District of Pennsylvania. He earned his B.A. magna cum laude from Washington University in St. Louis and his J.D. from the University of Pennsylvania Law School, where he was a James Wilson Fellow in Law and Technology.

Carlos Uriarte

Brandon L. Van Grack co-chairs Morrison Foerster’s National Security and Crisis Management groups. His practice focuses on investigations, criminal defense, and compliance matters involving export controls and sanctions, foreign investment, and cyber incidents. Brandon’s arrival to the firm follows more than a decade of service at the U.S. Department of Justice (DOJ), where he held multiple senior positions. In those positions, he helped manage the U.S. government’s tools to address perceived national security threats in China and Russia, oversaw every criminal investigation involving sanctions and export controls, and was Chief of DOJ’s Foreign Agents Registration Act (FARA) Unit.Brandon’s leadership and breadth of national security experience offers clients in the financial services, technology, artificial intelligence, defense, media, and communications sectors unmatched insider enforcement perspective across the entire national security landscape, including sanctions, the Committee on Foreign Investment in the United States (CFIUS), export control, cybersecurity matters, and FARA.<h4>Investigations & White Collar Defense </h4>At the DOJ, Brandon led and supervised some of the government’s most significant corporate investigations and resolutions across the national security spectrum. As Counsel to the Assistant Attorney General for National Security, and a Trial Attorney in the Counterintelligence & Export Control Section, he worked on the resolution of almost every significant corporate matter pertaining to export control and sanctions violations in the last decade and is one of the few attorneys to have managed the DOJ’s Voluntary Self‑Disclosure Program for export control and sanctions violations. As Chief of the FARA Unit, he directed scores of investigations of companies for acting as unregistered foreign agents. A selection of Brandon’s investigation & white collar defense experience includes:<ul><li>Obtained closure letter from DOJ for Cole Engineering Services, a subsidiary of By Light Professional IT Services LLC, less than six months after federal agents executed a search warrant at the company as part of a DOJ investigation.</li><li>Obtained declination from DOJ’s Criminal Fraud Section and United States Attorney’s Office for a prominent advertising and marketing agency concerning allegations that the company insiders improperly obtained and used Paycheck Protection Program (PPP) funds.</li></ul><h4>Sanctions, Export Control, & Foreign Investment</h4>As Counsel to the Assistant Attorney General, Brandon oversaw every criminal investigation involving export control and sanctions and led the DOJ’s response to the Obama Administration’s rollback of sanctions targeting Iran—the Joint Comprehensive Plan of Action (JCPOA). As a Trial Attorney, he prosecuted more than 30 export control and sanctions cases, including first-ever cases involving North Korea, weapons of mass destruction, and the Atomic Energy Act. In the first Trump Administration, Brandon led DOJ’s review of transactions involving foreign influence before CFIUS and Team Telecom; he also managed the DOJ’s review of transactions before CFIUS during the Obama Administration. A selection of Brandon’s sanctions, export control, & foreign investment experience includes:<ul><li>Obtained declination from DOJ and Department of State for individual accused of violating the International Traffic in Arms Regulations (ITAR) and brokering.  </li><li>Obtained declination from DOJ for CEO of a global technology company subject to criminal and civil investigations into alleged violations of the Export Administration Regulations (EAR).</li><li>Obtained license on an expedited timeline from the Bureau of Industry and Security (BIS) for a U.S. technology and manufacturing company to winddown operations in Russia.</li><li>Represent global retailer to conduct internal investigation and draft disclosures to civil authorities pertaining to potential apparent violations of U.S. sanctions and export controls laws.</li><li>Developed U.S. sanctions compliance program for artificial intelligence company and advised on implementation, including ongoing support for compliance processes and procedures.</li><li>Led internal investigation and submitted response to OFAC subpoena for software development company regarding potential violations of multiple sanctions programs; obtained cautionary letter.</li><li>Conducted international investigation concerning federal and state material support statutes as well as related sanctions issues for prominent international organization.</li><li>Represented cryptocurrency exchange before CFIUS in one of the largest cryptocurrency-related transactions and first filing involving digital assets before the Committee.</li><li>Represented Kahoot!, a global learning platform company based in Norway, in CFIUS matters related to its acquisition of Clever Inc.</li></ul><h4>FARA & the Lobbying Disclosure Act</h4>As Chief of the FARA Unit in the first Trump Administration, and the first official to supervise all foreign influence matters across the DOJ, Brandon revitalized and transformed the enforcement of FARA. Following the DOJ’s announcement making FARA an enforcement priority, he supervised a team of 40 attorneys and staff that opened a record number of investigations, pursued a record number of enforcement actions, secured a record number of registrations, and obtained the first civil injunction involving FARA in nearly three decades. Brandon also directed the review of Lobbying Disclosure Act (LDA) filings for criminal violations and regulated the exemption under FARA for LDA registrants. He also wrote the book on FARA enforcement for the American Bar Association. A selection of Brandon’s FARA & Lobbying Disclosure Act experience includes:<ul><li>Obtained first-ever closure letter from DOJ FARA Unit for a technology company under investigation for potential FARA violations.</li><li>Obtained declination from DOJ for sports organization in connection with a FARA investigation. </li></ul><h4>Cybersecurity </h4>As a long-time prosecutor, including as a Special Assistant U.S. Attorney for the U.S. Attorney’s Office for the Eastern District of Virginia, Brandon directed complex cyber investigations, including multiple matters involving state-sponsored cyber attacks. He prosecuted the first person convicted as a cyberterrorist and led the investigation of an international hacking group for identity theft, extortion, and dozens of spearphishing attacks against public and private entities. He also collaborated with other government agencies, such as the Securities and Exchange Commission, Federal Bureau of Investigation, and the Department of Homeland Security, to facilitate cooperation from corporate victims and disseminate threat information. A selection of Brandon’s cybersecurity experience includes:<ul><li>Obtained assistance from FBI and local enforcement for a data and analytics firm to disrupt cyber-enabled campaign of former employee targeting customers.</li></ul>During his time at the DOJ, Brandon handled the entire range of national security matters. He led and supervised investigations and prosecutions involving espionage, economic espionage, mishandling of classified information, and theft of trade secrets. He also directed investigations involving treason, mutiny, the Neutrality Act, and the Logan Act, and worked closely with the Department of Education on matters pertaining foreign influence, foreign funding, and national security.Brandon has been widely recognized for his deep experience in handling national security matters, and keynotes and speaks at industry conferences involving export control and sanctions, CFIUS, FARA, and political law. He has received numerous awards for his work, including the Attorney General’s Award for Distinguished Service (2018), the FBI Director’s Award for Outstanding Cyber Investigation (2017), the Director of National Counterintelligence’s Award for Excellence (2019), the Homeland Security Investigations Executive Associate Director’s Award for Outstanding Counterproliferation Investigation (2014), and five awards from the Assistant Attorney General for National Security.Brandon regularly provides insight on national security issues and DOJ matters with national media. He is a frequent contributor on cable news, including MSNBC’s The Rachel Maddow Show, Deadline: Whitehouse and All In with Chris Hayes, ABC's Good Morning America, NBC's Meet the Press, CNN, BBC News, Sky News and NHK World. He also regularly appears on NPR’s Morning Edition. He has been quoted on a variety of national security topics in the Wall Street Journal, New York Times, and Washington Post, among others,Brandon is also a Contributing Editor to the Lawfare blog and co-host of <a href="https://www.lawfaremedia.org/podcasts-multimedia/podcast/the-regulators-series" target="_blank">The Regulators</a> podcast, where he speaks with key U.S. government regulators in the national security space, including leaders at OFAC, CFIUS, the Bureau of Industry and Security, DOJ, FinCEN, the Office of Information and Communications Technology and Services (ICTS), and FBI.