David Turkovic

David “Turk” Turkovic is Principal of National Security Policy at Lewis-Burke Associates.  He is responsible for developing and executing comprehensive advocacy strategies that resonate with the Department of Defense (DOD) and Capitol Hill.  As a national security policy expert, he leverages his experience working in the Pentagon and maintains strong bipartisan relationships with congressional committees and personal offices on Capitol Hill.

Turk comes to Lewis-Burke having served the Secretary of Defense as special assistant for legislative affairs, where he was the primary liaison to Capitol Hill for both the Undersecretary for Acquisition & Sustainment (USD/A&S) and Undersecretary for Research & Engineering (USD/R&E).  In that role, he spearheaded the Department of Defense’s legislative efforts on critical supply chain issues, including microelectronics, hypersonic weapons, and other advanced capabilities; he also advocated for a range of priorities on behalf of the Defense Innovation Unit (DIU), the Defense Innovation Board (DIB), and the Defense Science Board (DSB).

Prior to joining Lewis-Burke, Turk was director for industrial base policy at the Aerospace Industries Association (AIA) where he was responsible for developing AIA’s national security agenda, and for planning and executing advocacy efforts to support supply chain issues for the defense industrial base.

At Lewis-Burke, he provides clients with informed strategies and effective legislative approaches to supporting the missions of the Department of Defense and the Intelligence community.

Issue Expertise: Defense, national security R&D, defense supply chains, and authorizations & appropriations.

Additional Experience: Previously, he was special assistant for legislative affairs to the Assistant Secretary of the Army for Installations, Energy & Environment (ASA IE&E), where he encouraged Army priorities in energy & environment, and managed relationships on Capitol Hill.

Vital Statistics: A native of Cleveland, Ohio, Turk holds a bachelor’s degrees in both political science and history from Cleveland State University.  He is a recipient of the Office of the Secretary of Defense Medal for Exceptional Public Service and the Secretary of the Army Meritorious Public Service Medal. Turk is an active member in the Croatian community, enjoys cheering on the Cleveland Browns and plays volleyball around DC.


Sharon Eshelman

Sharon Eshelman is a strategic planning and communications professional with decades of government service and consulting experience, who has specialized in stakeholder management, and government affairs related to national security since 2001. At Lewis-Burke, Sharon serves as a strategic advisor to clients helping to advance their defense, cybersecurity, and homeland security priorities.  Sharon joins Lewis-Burke after spending two years as Senior Advisor in the Office of Legislative Affairs for the Department of Homeland Security (DHS), where she guided the Department’s response to a myriad of Congressional oversight investigations and served as the primary liaison with Capitol Hill on Intelligence matters. Ms. Eshelman previously served as the National Security Subcommittee Staff Director for the U.S. House of Representatives Oversight and Government Reform Committee, overseeing more than 35 investigations into the Departments of Justice (DOJ), Homeland Security, State, Veterans’ Affairs, Defense, and the Intelligence Community.  

Issue Expertise: Defense and national security, homeland security, immigration, criminal justice, cybersecurity, congressional oversight.

Additional Experience:  From 2009 to 2017, Ms. Eshelman worked as a professional project manager at both Deloitte Consulting and the Sentinel HS Group where she supported strategy and policy clients within DHS, DOJ and the Treasury Department.  Prior to becoming a consultant in 2009, Ms. Eshelman served five years with the federal government, assuming various policy development roles in both DHS and the White House.  Throughout her career, she has contributed to a variety of federal initiatives such as: the White House Strategy (and Implementation Plan) for Pandemic Influenza; national disaster and COOP planning; various criminal justice and civil enforcement plans; federal fraud, waste and abuse investigations; victim support initiatives; federal program, planning, budgeting and execution (PPBE) efforts; state and local law enforcement outreach campaigns; government re-organizations and has written pieces included in the President’s Daily Briefing Book.  

Vital Statistics:  Ms. Eshelman received a B.S. in Business Administration from American University in Washington, DC, and a M.A. in National Security and Strategic Studies from the U.S. Naval War College in Newport, RI, and has completed additional coursework in political science and education.  

Beyond her professional and academic accomplishments, Ms. Eshelman has volunteered with the Anne Arundel County Public School System, Junior Achievement, National Youth Leadership Forum and College Summit organizations, and continues to look for ways to support youth development initiatives in the Greater Washington DC area.

Sharon is originally from the Greater Philadelphia area and is an avid Eagles, NASCAR and cheesesteak fan.  She enjoys playing golf and frisbee, jogging, swimming, and spending time outside with her husband and three children.  


Mia Luckett

Mia Luckett delivers timely insight, detailed research, and federal agency and congressional updates to Lewis-Burke clients. Mia specializes in monitoring and analyzing agency and legislative activity related to the National Science Foundation (NSF), Department of Defense (DOD), and the Department of Justice (DOJ).

Issue Expertise: Technology, Engineering Communities, Social Science, and Public- Private Partnerships.

Additional Information: Before joining Lewis-Burke Associates, Mia was a legal administrative assistant to a criminal defense and real estate attorney. Mia also interned with the district office of Congressman Bobby Scott (VA-03), where she gained an understanding of education policy and aided incarcerated constituents in utilizing government agencies. Mia was previously an Eben Tisdale Public Policy Fellow with the Fund for American Studies. As a fellow, she interned with lobbying firm Mehlman Castagnetti Rosen & Thomas and worked with the Technology CEO council. During this time, Mia gained expertise in high-tech public policy, the latest innovations in science and technology, and conducted research on the effectiveness of bipartisanship.

Vital Statistics: Originally from the southern suburbs of Chicago, Mia graduated magna cum laude from Hampton University with a Bachelor of Arts degree in Political Science. While attending Hampton, Mia also joined Zeta Phi Beta Sorority, Inc., and often does community service with other organization members. Mia is a self- proclaimed foodie and loves trying out a new recipe, or the latest and trendiest restaurants. In her free time Mia also enjoys traveling, reading, and working out.


Nzinga Dyson, J.D.

At Lewis-Burke, Nzinga uses her comprehensive knowledge of the inner-workings of Capitol Hill to advise and support clients with their national security and environmental research- related government relations needs. She also advises clients on upcoming research opportunities and strategies to engage Federal research agencies and Capitol Hill.

Before joining Lewis-Burke, Nzinga served as Legislative Counsel at the U.S. House of Representatives’ Committee on Homeland Security, where she advised Members of Congress and Committee leadership on legislative and oversight matters that pertained to the administration of the Federal Emergency Management Agency (FEMA), within the Department of Homeland Security (DHS).

While at the U.S. House of Representatives’ Committee on Homeland Security, Nzinga was primarily responsible for the Committee’s work surrounding the DHS preparedness grant programs and emergency communications. Nzinga also monitored FEMA’s response and recovery efforts associated with disasters, including hurricanes, earthquakes, wildfires, and recently, the COVID-19 pandemic. Most notably, Nzinga was instrumental in the passage of the Securing American Nonprofit Organizations Against Terrorism Act of 2019, legislation that became law in January 2020.

Issue Areas: Defense, National Security, Homeland Security, Congressional Affairs, Climate Resilience

Additional Expertise: Nzinga also served as Special Assistant to the Chairman at Ian Reid, LLC. There, she provided strategic advice and counsel to the firm’s Chairman and leadership team on public policy related to geo-political issues, research, and current events. She also advised clients with local government issues related to homeland security and public safety.

Vital Statistics: Nzinga is from Fort Washington, Maryland. She received her Bachelor of Arts degree in Political Science from Morgan State University and her Juris Doctorate degree from the North Carolina Central University School of Law. She was admitted to the Maryland Bar in 2013.

Nzinga is also an active member of the Xi Zeta Omega Chapter of Alpha Kappa Alpha Sorority, Incorporated, where she served as Attorney Advisor in 2019, advising the Chapter President and Executive Board members on all legal matters.