Rosaline Cohen, J.D., was a lecturer at the Archer Center, where she supervised Graduate Archer Fellows in the National Security and Global Affairs Policy Working Group. For over twenty years, Professor Cohen has established herself as a trusted thought leader on homeland and national security matters and Congress. She is currently the deputy director of government and external affairs for the Lawrence Livermore National Laboratory. From 2007 to 2023, she served as chief counsel to Chairman Bennie G. Thompson and the Democrats on the Committee on Homeland Security. In this capacity, she developed and advanced the policy priorities of committee Democrats and the Democratic caucus. Professor Cohen managed a diverse professional staff of policy experts and attorneys through all phases of the policymaking process on issues ranging from counterterrorism and acquisitions to cybersecurity and infrastructure protection to border and immigration. In the course of carrying out her duties, she collaborated with House leadership, Republican committee staff, House and Senate staff on other committees, the Executive Branch, and private sector stakeholders. Prior to joining the Committee on Homeland Security staff, Cohen worked for U.S. Representative Louise M. Slaughter (NY) and former U.S. Representative Ken Bentsen (TX), where she managed a broad portfolio of issues that included committee work with the House Budget Committee (2000–2002) and House Select Committee on Homeland Security and House Rules Committee (2002–2005). Professor Cohen holds a J.D. from the University of Houston Law Center (1999) and a B.A. from The Elliot School of International Affairs at George Washington University (1994).