Organization and Staffing

CBO is organized into the following divisions:

CBO’s collegial work environment and flat organizational structure foster collaboration and teamwork across and within divisions. For example, reports produced by analysts in several divisions rely on economic projections prepared by the Macroeconomic Analysis Division and on cost estimates and budget projections prepared by the Budget Analysis and Tax Analysis Divisions. Similarly, budget projections and cost estimates prepared by the Budget Analysis and Tax Analysis Divisions draw on models and analyses produced by other divisions.

CBO has about 275 staff members, mostly economists or public policy analysts with advanced degrees. The agency also employs lawyers, information technology specialists, editors, and people with other areas of expertise that contribute to the agency’s mission.

Office of the Director

CBO’s Director leads the agency and is supported in that effort by a group of senior staff, members of the Office of Communications, and members of the Office of General Counsel.

Biographies and Staff Listings
Director

Phillip L. Swagel became the 10th Director of the Congressional Budget Office on June 3, 2019. Previously, he was a professor at the University of Maryland’s School of Public Policy and a visiting scholar at the American Enterprise Institute and the Milken Institute. He has also taught at Northwestern University, the University of Chicago’s Booth School of Business, and Georgetown University. His research has involved financial market reform, international trade policy, and China’s role in the global economy.

From 2006 to 2009, Dr. Swagel was Assistant Secretary for Economic Policy at the Treasury Department, where he was responsible for analysis of a wide range of economic issues, including policies relating to the financial crisis and the Troubled Asset Relief Program. He has also served as chief of staff and senior economist at the Council of Economic Advisers in the White House and as an economist at the Federal Reserve Board and the International Monetary Fund. He earned his Ph.D. in economics from Harvard University and his A.B. in economics from Princeton University.

Chief Economist

Mark Doms joined CBO as Chief Economist in 2020. He has examined a wide variety of topics throughout his career, including macroeconomics, financial markets, labor, productivity, and economic measurement. He has been a senior fellow at the Center for International Governance Innovation, a senior economist at Nomura Securities, Under Secretary of Commerce for Economic Affairs at the Department of Commerce, Chief Economist in that department, a senior economist at the Federal Reserve Bank of San Francisco, an economist at the Federal Reserve Board, and an economist at the Census Bureau. His research has been published in the Quarterly Journal of Economics, the Journal of Political Economy, and elsewhere. He received his Ph.D. in economics from the University of Wisconsin–Madison and a B.A. from the University of Maryland, Baltimore County.

Chief Operating Officer and General Counsel

Mark Hadley served as CBO’s Deputy Director from 2016 through 2019. Before then, he was CBO’s general counsel for nearly eight years. In that capacity, he oversaw the agency’s legal work, ethics program, and acquisitions. He had advanced from the post of deputy general counsel. Before that, he was a transactional lawyer with Jones Day, a large international law firm, where he specialized in structured finance and derivatives. Prior to his legal career, he was an associate analyst at CBO for five years—during which time his areas of responsibility were aviation, deposit insurance, and commerce—and a financial specialist with the Small Business Administration. He has a master’s degree in public affairs from the Robert M. La Follette School of Public Affairs at the University of Wisconsin and a J.D. (with high honors) from the George Washington University Law School. He also serves as the chair of the Organisation for Economic Co-operation and Development’s Network of Parliamentary Budget Officials and Independent Fiscal Institutions.

Research Director

Jeffrey Kling is an economist who served as Associate Director for Economic Analysis at CBO from 2009 through 2019. Previously, he was a senior fellow at the Brookings Institution and a faculty member at Princeton University. His research has been published in the American Economic Review, Econometrica, the Quarterly Journal of Economics, and elsewhere. He earned his Ph.D. in economics from the Massachusetts Institute of Technology and his A.B. from Harvard University.

Director of Legislative Affairs

Leigh Angres joined CBO in 2007 and worked in a variety of positions before becoming head of legislative affairs in 2015. Before assuming her current post, she served for more than five years as a special assistant to the Director. Before joining the Director’s office in 2009, she was an analyst in the Budget Analysis Division. There, she prepared cost estimates for legislation involving deposit insurance, the U.S. court system, and Department of Justice programs. In earlier government service, she worked as a budget analyst in the Department of Justice’s Civil Division, preparing the agency’s appropriation requests. She earned her M.P.P. from the University of California at Berkeley and her A.B. from Duke University.

Director of Communications

Deborah Kilroe joined CBO as the head of its communications office in April 2011. Before coming to the agency, she spent five years working in communications in the Federal Reserve System. Most recently, she was a vice president at the Federal Reserve Bank of New York, where she oversaw media relations and public affairs, and she previously worked in the public affairs office at the Federal Reserve Board in Washington, D.C. Before joining the Federal Reserve Board, Deborah Kilroe spent 15 years as a journalist, during which time she specialized in covering economics, monetary policy, financial markets, and politics. Her journalism career began at States News Service in Washington, covering the Congress and the Administration. She went on to be a staff writer at The Record, in New Jersey, focusing on municipal government. She later became an economics reporter at Bridge News in New York and at Dow Jones Newswires in Washington. She also worked as a senior producer for AOLTV and has been an on-air contributor to CNBC, MSNBC, and PBS’s Nightly Business Report. She holds a B.S. in journalism from the University of Colorado at Boulder.

Senior Adviser

Robert Sunshine is a senior adviser to the Director, a post he assumed in June 2016. Before then, he was the Deputy Director for almost nine years, serving under three different Directors—and he served as Acting Director from November 2008 to January 2009. In 2003, he received the James L. Blum Award for exceptional and distinguished accomplishment and leadership in public budgeting from the American Association for Budget and Program Analysis. Bob Sunshine has been with CBO almost from its inception. From 1999 to 2007, he served as Assistant Director for Budget Analysis. From 1995 to 1999, he was the Deputy Assistant Director of the Budget Analysis Division. From 1978 to 1994, he served as Chief of the Natural and Physical Resources Cost Estimates Unit in that division. For the two years before that, he was a principal analyst in the Budget Analysis Division, covering transportation issues. Before coming to CBO, he was a senior associate with Simat, Helliesen and Eichner, Inc., a transportation consulting firm.

Director Phillip L. Swagel
Director of Legislative Affairs Leigh Angres
Chief Economist Mark Doms
Chief Operating Officer and General Counsel Mark Hadley
Research Director Jeffrey Kling
Senior Adviser Robert Sunshine
Executive Assistant - Director's Office Brianne Hutchinson
Administrative Assistant Charlotte McCray
Director of Communications Deborah Kilroe
Web Developer Maria Aquino
Web Developer Rob Dean
Web Designer Annette Kalicki
SharePoint Administrator Kelly Reed
Intern Associate Lindsay Wilson
General Counsel Mark Hadley
Deputy General Counsel Kevin Laden
Chief Acquisition Officer Caryn Thiboheim
Assistant General Counsel Russell Krupen
Senior Counsel Samantha Riley
Senior Ethics Officer Chayim Rosito
Counsel Davis Riley
Contract Specialist David Jackson Sr.

Budget Analysis Division

The Budget Analysis Division produces baseline projections of federal spending, formal cost estimates for nearly every bill approved by Congressional committees, and informal cost estimates for thousands of proposals that committees are considering. The formal cost estimates include estimates not only of the effects of the legislation on the federal budget but also assessments of the costs imposed on state, local, and tribal governments and on the private sector.

In addition, the division also makes key contributions to many of CBO's analytic reports and works on:

Biographies and Staff Listings
Director of Budget Analysis

Theresa Gullo is the Director of Budget Analysis at CBO. She guides and contributes to analyses that are critical to the legislative processes of the Congress—including projections of federal spending for the current year and the next 10 years under current laws and policies for about 1,000 budget accounts covering all federal activities; tallies of federal spending throughout the year; and about 600 formal cost estimates (most of which include estimates of the cost of federal mandates on state, local, and tribal governments) each year for legislation approved by committees and thousands of informal estimates each year for legislation under consideration. Ms. Gullo has worked at CBO since 1985. She served as an analyst in the Natural and Physical Resources Cost Estimates Unit, where she handled land and water management issues. She also helped create and managed the State and Local Government Cost Estimates Unit until 2007, when she became the division’s Deputy Director.

Before coming to CBO, Ms. Gullo worked at the Urban Institute, conducting research on a variety of public finance issues, including infrastructure investment and state implementation of federal block grants. She graduated from Scripps College with a bachelor’s degree in American studies and received a master’s degree in public policy from the University of California at Berkeley.

Deputy Director of Budget Analysis

Leo Lex, one of two deputies in the Budget Analysis Division, works with the Director of Budget Analysis to manage the division’s work on various topics, including health, defense, international affairs, and veterans’ issues. He came to CBO in 1995 to join the team that carries out CBO’s responsibilities under the Unfunded Mandates Reform Act by estimating the costs of intergovernmental and private-sector mandates in legislation. As an analyst, he was primarily responsible for producing mandate statements for bills that affected health and income security programs. He also focused on state tax issues. In 2007, he became the head of the State, Local, and Tribal Cost Estimates Unit and in that capacity reviewed CBO’s mandate analyses for all bills approved by authorizing committees. Before coming to CBO, he worked for the Illinois Bureau of the Budget, where he projected cash flows for the state’s general fund and coordinated the state’s borrowing for general obligation debt. He graduated from Augustana College in South Dakota with a bachelor’s degree in English and government and received a master’s degree in public administration, with a focus on state and local government finance, from Syracuse University.

Deputy Director of Budget Analysis

Sam Papenfuss is one of two deputies in the Budget Analysis Division. In that capacity, he works with the Director of Budget Analysis to manage the division’s work on a wide array of topics, including Social Security, income security, education, immigration, and natural and physical resources. Mr. Papenfuss joined CBO in 1999 as an analyst of military and veterans’ health care. He was responsible principally for the cost estimates and baseline projections for Tricare for Life (the health care program for military retirees who are eligible for Medicare), but also for work involving bioterrorism and international affairs. In 2007, he became the head of the Income Security and Education Cost Estimates Unit. In that post, he oversaw cost estimates and baseline projections for Social Security and for programs providing unemployment insurance, nutrition assistance, and student loans. He also was the primary coordinator for all of the division’s work related to immigration. Mr. Papenfuss graduated from Brigham Young University with a bachelor’s degree in economics and pursued doctoral studies in economics at George Mason University, where he completed all of the requirements for his degree except his dissertation.

Director of Budget Analysis Theresa Gullo
Deputy Director of Budget Analysis Leo Lex
Deputy Director of Budget Analysis Sam Papenfuss
Senior Adviser Ann E. Futrell
Senior Adviser Sarah Masi
Editor Kate Kelly
Executive Assistant - BAD Janice M. Johnson
Defense, International Affairs, and Veterans' Affairs Cost Estimates Unit
Unit Chief David Newman
Analyst Sunita D'Monte
Analyst Paul B. A. Holland
Analyst William Ma
Analyst Aldo Prosperi
Analyst David Rafferty
Analyst Dawn Sauter Regan
Analyst Matt Schmit
Analyst Logan Smith
Analyst Caroline Dorminey
Analyst Etaf Khan
Analyst Christopher Mann
Administrative Assistant Brittany Phillips
Finance, Housing, and Education Cost Estimates Unit
Unit Chief Justin Humphrey
Analyst David Hughes
Analyst Leah Koestner
Analyst Jon Sperl
Analyst Aurora Swanson
Analyst Julia Aman
Analyst Jeremy Crimm
Analyst Zunara Naeem
Analyst Garrett Quenneville
Health Systems and Medicare Cost Estimates Unit
Unit Chief Paul Masi
Analyst Cornelia Hall
Analyst Brian Klein-Qiu
Analyst Hudson Osgood
Analyst Lara Robillard
Analyst Asha Saavoss
Analyst Sarah Sajewski
Analyst Rachel Matthews
Income Security Cost Estimates Unit
Unit Chief Elizabeth Cove Delisle
Analyst Susan Yeh Beyer
Analyst Meredith Decker
Analyst Jennifer Gray
Analyst Justin Latus
Analyst Susanne Mehlman
Analyst Noah Meyerson
Analyst Emily Stern
Analyst Sree Yeluri
Low-Income Health Programs and Prescription Drugs Cost Estimates Unit
Unit Chief Chad Chirico
Analyst Ryan Greenfield
Analyst Stuart Hammond
Analyst Robert Stewart
Analyst Emily Vreeland
Analyst Kate Young
Analyst Carolyn Ugolino
Analyst Katie Zhang
Natural and Physical Resources Cost Estimates Unit
Unit Chief Susan Willie
Analyst Tiffany Arthur
Analyst Kathleen Gramp
Analyst Aaron Krupkin
Analyst Erik O'Donoghue
Analyst Matthew Pickford
Analyst Robert Reese
Analyst Madeleine Fox
Administrative Assistant Ernestine McNeil
Projections Unit
Unit Chief Christina Hawley Anthony
Application and Data Systems Manager Patrice Watson
Application and Data Systems Engineer Shane Beaulieu
Analyst Barry Blom
Analyst Aaron Feinstein
Analyst Avi Lerner
Analyst Amber Marcellino
Analyst Dan Ready
Public and Private Mandates Unit
Unit Chief Kathleen FitzGerald
Analyst Rachel Austin
Analyst Andrew Laughlin
Analyst Lilia G. Ledezma
Analyst Brandon Lever
Analyst Fiona Forrester
Administrative Assistant Ernestine McNeil
Scorekeeping Unit
Unit Chief Megan Carroll
Analyst George McArdle
Analyst Justin Riordan
Analyst Mark Sanford
Analyst Esther Steinbock
Analyst J'nell Blanco Suchy
Analyst Breanna Browne-Pike
Analyst Amy McConnel
Analyst Olivia Yang

Financial Analysis Division

The policy analyses of the Financial Analysis Division focus on the financial commitments of the federal government, including federal credit and insurance programs and government-sponsored enterprises. The division also provides support throughout CBO for financial valuation and modeling and for projections of financial variables.

Biographies and Staff Listings
Director of Financial Analysis

Sebastien Gay became CBO’s Director of Financial Analysis in May 2017. He came to the agency in 2016 as an analyst and performed research on federal housing programs and fair-market value analysis. Before joining CBO, he was a Director at Berkeley Research Group, a consulting firm, where he provided independent analysis, expert testimony, and dispute consulting for firms in the financial, health care, and insurance industries, as well as for government. He was also on the faculty at the Department of Economics at the University of Chicago. His research focused on corporate governance, financial risks and disclosures, real estate, health care, and experimental economics. He holds a Ph.D. in economics from the University of Chicago, a master’s degree in finance from the Ecole Nationale de la Statistique et de l’Administration Economique (ENSAE) ParisTech, and an M.Phil. in law and political science from Sciences Po in Paris.

Director of Financial Analysis Sebastien Gay
Senior Adviser Michael Falkenheim
Analyst Wendy Kiska
Analyst Michael McGrane
Analyst Jeffrey Perry
Analyst Mitchell Remy
Analyst David Torregrosa
Analyst Byoung Hark Yoo
Analyst Vinay Maruri

Health Analysis Division

The Health Analysis Division analyzes a range of federal programs and policies that include Medicare, Medicaid, and subsidies provided through health insurance exchanges. The division produces reports on a range of policy issues and plays a key role in certain estimates of proposed changes in health care programs.

Biographies and Staff Listings
Director of Health Analysis

Carrie H. Colla came to CBO in August 2021 from Dartmouth College, where she was a professor. She was also a member of the Physician-Focused Payment Model Technical Advisory Committee at the Department of Health and Human Services. She was a Robert Wood Johnson Foundation Health Policy Fellow at the National Academy of Medicine in 2017 and 2018, and she has served as a senior adviser to the Center for Medicare and Medicaid Innovation. Her research has focused on the performance of health care systems, the effectiveness of payment and delivery-system reforms, disparities in care for rural patients, and improving the quality, accessibility, and cost of care for complex patients. She holds a Ph.D. in health policy and an M.A. in economics from the University of California, Berkeley, and an A.B. in economics from Dartmouth College.

Deputy Director of Health Analysis

Chapin White is a health economist who joined CBO in 2004 and then worked at the Rand Corporation and the Center for Studying Health System Change before rejoining CBO in 2020. His areas of expertise include price transparency, health insurance coverage, provider payment policy, surprise billing, and microsimulation modeling. He holds an A.B. from Harvard College, an M.P.P. from the Harvard Kennedy School, and a Ph.D. in health policy from Harvard University.

Director of Health Analysis Carrie H. Colla
Deputy Director of Health Analysis Chapin White
Health Insurance Modeling Unit
Unit Chief Alexandra Minicozzi
Analyst Caroline Hanson
Analyst Ben Hopkins
Analyst Sean Lyons
Analyst Eamon Molloy
Analyst Romain Parsad
Analyst Allison Percy
Analyst Nianyi Hong
Analyst Claire Hou
Analyst Christian Henry
Analyst Robert Lindsay
Health Market Studies Unit
Unit Chief Berna Demiralp
Analyst Michael Cohen
Analyst Ru Ding
Analyst Grace Hwang
Analyst Daria Pelech
Analyst Rebecca Sachs
Analyst Karen Stockley
Analyst Eric Schulman
Intern Associate Megan Hyland
Health Policy Studies Unit
Unit Chief Tamara Hayford
Analyst Christopher Adams
Analyst Colin Baker
Analyst Noelia Duchovny
Analyst Scott Laughery
Analyst Ryan Mutter
Analyst Chris Zogby
Analyst Joshua Varcie

Labor, Income Security, and Long-Term Analysis Division

The Labor, Income Security, and Long-Term Analysis Division analyzes a range of federal programs and policies that include Social Security and programs related to education and income security. The division is also responsible for CBO’s long-term budget projections and collaborates on analyses of the long-term effects of proposed legislation.

Biographies and Staff Listings
Director of Labor, Income Security, and Long-Term Analysis

Julie Topoleski became CBO’s Director of Labor, Income Security, and Long-Term Analysis in January 2021. She previously served as a Deputy Director for Health, Retirement, and Long-Term Analysis. Before that, she was the chief of the Long-Term Analysis Unit, which is responsible for long-term projections of Social Security, Medicare, Medicaid, and the federal budget, as well as for long-term analysis of policy changes in those areas. As unit chief, she directed the annual publication of The Long-Term Budget Outlook and managed CBOLT, which is CBO’s long-term microsimulation model. She joined CBO in 2003 as an analyst, working on CBOLT, playing an integral role in long-run analyses of proposed changes to Social Security and Medicare, and helping write The Long-Term Budget Outlook. Dr. Topoleski received a Ph.D. in economics from the University of Maryland and a B.A. in economics from Mary Washington College.

Director of Labor, Income Security, and Long-Term Analysis Julie Topoleski
Labor, Education, and Income Security Unit
Unit Chief Xiaotong Niu
Analyst Nabeel Alsalam
Analyst Justin Falk
Analyst Rebecca Heller
Analyst Nadia Karamcheva
Analyst Brooks Pierce
Analyst Natalie Tawil
Analyst Adam Abadi
Analyst Elizabeth Ash
Long-Term Analysis Unit
Unit Chief Molly Dahl
Analyst Xinzhe Cheng
Analyst Daniel Crown
Analyst Kyoung Mook Lim
Analyst Charles Pineles-Mark
Analyst Damir Cosic
Analyst Jordan Trinh
Analyst Lucy Yuan

Macroeconomic Analysis Division

The Macroeconomic Analysis Division analyzes the U.S. economy and its prospects. The division produces CBO’s economic projections, which underlie the agency’s budget projections. The division also studies various macroeconomic factors and relationships, such as changes in labor force participation, trends in productivity growth, and the roles of inflation and interest rates in the outlook for the economy and federal debt. In addition, the division performs modeling and dynamic analysis of the short-term and long-term effects on the economy of some proposed changes in federal tax and spending policies.

Biographies and Staff Listings
Director of Macroeconomic Analysis

Jeffrey Werling joined CBO in 2016. Before coming to the agency, he was the Director of Inforum, a research unit within the Department of Economics at the University of Maryland, College Park. There, he served as the principal investigator for projects concerning economic forecasts, infrastructure investment, health care, fiscal policy, port disruptions, immigration, and exchange rate fluctuations. For more than a decade, he contributed to the Blue Chip and other consensus economic forecasts. He also taught an undergraduate course in economic development. Previously, he held positions as an international and industry economist with the National Electrical Manufacturers Association, the Manufacturers Alliance for Productivity and Innovation, and Wharton Econometric Forecasting Associates (now Global Insight). He received a B.S. in mineral economics from the Pennsylvania State University, and an M.A. and a Ph.D. in economics from the University of Maryland.

Fiscal Policy Studies Unit
Unit Chief Devrim Demirel
Analyst Aaron Betz
Analyst Junghoon Lee
Analyst Jaeger Nelson
Analyst Kerk Phillips
Analyst John Seliski
Analyst Matthew Wilson
Projections Unit
Unit Chief Robert Arnold
Analyst Daniel Fried
Analyst Edward Gamber
Analyst Mark Lasky
Analyst Jeffrey Schafer
Analyst Chandler Lester
Analyst Christine Ostrowski
Analyst Nicholas Abushacra
Analyst Grace Berry

Management, Business, and Information Services Division

The Management, Business, and Information Services Division provides administrative and support services for CBO. The division’s responsibilities include the agency’s human resources activities, financial management responsibilities, information and technology resources, library services, and facilities. Additionally, the division is responsible for editing and producing CBO’s publications.

Biographies and Staff Listings
Chief Administrative Officer and Director of Management, Business, and Information Services

Mark Smith became CBO’s Chief Administrative Officer in January 2022, having advanced from his position as the agency’s Chief Financial Officer, which he had held since 2013. During his time as Chief Financial Officer, he handled all aspects of planning and implementing CBO’s budgetary and financial activities. Before he came to CBO, he served as a senior financial adviser for the Defense Intelligence Agency (DIA) in its Office of the Chief Financial Officer, where he directed and controlled the daily management, reporting, and analysis of the agency’s personnel dollars. In a previous role in DIA, he served as a senior financial resource manager; in that capacity, he participated in all aspects of the formulation, execution, and fiscal oversight of a budget covering almost all of DIA’s appropriated funding. He holds a B.S. in finance from George Mason University.

Chief Administrative Officer and Director of Management, Business, and Information Services Mark Smith
Editor in Chief John Skeen
Editorial and Publishing Services
Operations Editor Christine Bogusz
Editor Christine Browne
Editor Scott Craver
Graphics Editor Casey Labrack
Editor Rebecca Lanning
Editor Loretta Lettner
Editor Bo Peery
Graphics Editor R. L. Rebach
Graphics Editor Jorge Salazar
Editor Caitlin Verboon
Human Resources
Chief Human Resources Officer Dana Ealey
Human Resources Specialist Holly M. Boras
Human Resources Specialist Kate Green
Human Resources Specialist Annita Gulati
Human Resources Specialist DaMischa Phillip
Human Resources Assistant Yolanda Boyd
Information Resources Management and Technology Services
Chief Information Officer Angela D. Clark
Deputy Chief Information Officer Jesus Salang
Senior Systems Engineer Frank Gibbs
Vendor Program Specialist Ashley Johnson
Senior Network Engineer Guanli Lu
Enterprise Architect Kristen L. Skinner
Senior Computer Systems Engineer Zhicheng Su
Systems Engineer Brad Hicks
Computer Systems Engineer Joann Liao
Information Security Engineer Randall Norfleet
Systems Engineer Taoheed Osanyinpeju
Computer Support Specialist 2/3 James Butler
Computer Support Specialist 2/3 Langdon Johnson IV
Computer Support Specialist 2/3 Aaron Johnson
Office of Financial Management
Chief Financial Officer Tracy L. Henry
Controller Lauren DesJardins
Staff Accountant Jason Brown
Budget Analyst Kamna Virmani
Office of Security, Facilities, and Administrative Services
Security and Administrative Services Officer Phyllis E. Williams
Facilities Program Analyst Tyler Conway
Administrative Assistant Nicole Macias
Administrative Assistant Charlotte McCray
Administrative Assistant DeAnna Waters

Microeconomic Studies Division

The Microeconomic Studies Division analyzes a broad range of programs and policies with significant implications for the federal budget and the economy. They include federal policies related to energy and natural resources, climate and the environment, and federal investments in physical infrastructure, such as highways.

Biographies and Staff Listings
Director of Microeconomic Analysis

Joseph Kile came to CBO in 2005, following 16 years in various positions at the Government Accountability Office (GAO). While at that agency, he led the Center for Economics, within the Applied Research and Methods Team—overseeing a group of economists that provided analyses and reviews of a broad range of issues. Before that, he was a senior economist and an assistant director within GAO’s Office of the Chief Economist. His analyses focused, in particular, on the issues of transportation (especially aviation financing, airline competition, and air service to small communities), energy, natural resources and the environment, and the pharmaceutical industry. Joseph Kile received a master’s degree and a doctorate in economics from the University of Wisconsin-Madison. His bachelor’s degree in economics and mathematics is from St. Olaf College, in Northfield, Minnesota.

Director of Microeconomic Analysis Joseph Kile
Energy, Climate, and Environment Unit
Unit Chief Nicholas Chase
Analyst David Austin
Analyst Ron Gecan
Analyst Evan Herrnstadt
Analyst David Adler
Analyst Kenneth Austin Castellanos
Analyst William Swanson
Transportation, Public Investment, and Commerce Unit
Analyst Sheila Campbell
Analyst Nathan Musick
Analyst Chad Shirley

National Security Division

The National Security Division analyzes policy issues related to the defense budget, veterans’ affairs, and homeland security. The division examines the long-term costs of the Defense Department’s plans, alternative ways of achieving certain military capabilities, and the benefits and drawbacks of possible changes in military compensation and veterans’ benefits.

Biographies and Staff Listings
Director of National Security Analysis

David Mosher returned to CBO in June 2010, resuming with the agency after having been a principal analyst at CBO from 1990 to 2000 in the division that he now leads. In the decade in between his time at CBO, he was a senior policy analyst at RAND. During his time at RAND, David Mosher was also an adjunct professor at Georgetown University and served as the director of the American Physical Society’s Study Group on Boost-Phase Intercept Systems for National Missile Defense. His research focused on environmental issues for the Army in contingency operations; ballistic missile defense; military use of space; nuclear proliferation; nuclear weapons; the role of the military and the National Guard in homeland security; special forces aviation; Army strategy; and terrorists’ acquisition and use of nuclear, biological, chemical, and radiological weapons. David Mosher holds an M.P.A. from the Woodrow Wilson School of Public and International Affairs, Princeton University, and a B.A. in physics from Grinnell College, in Grinnell, Iowa.

Deputy Director of National Security Analysis

Edward G. Keating joined CBO in January 2017 as the Deputy Director of the National Security Division. Before coming to CBO, he worked for 24 years as an economist at the RAND Corporation in Santa Monica, California. His research at RAND focused on helping government agencies, especially the Department of Defense, make cost-effective decisions; specific areas of research included the effects of aging on aircraft, when and whether to repair or replace military hardware, how the Department of Defense should structure its internal transfer pricing, military and civilian compensation policies, how the Forest Service should structure its aerial firefighting fleet, and the effects of government spending on economic development. He has published widely in RAND publications and in professional and trade journals. He earned a Ph.D. in economic analysis and policy from the Stanford Graduate School of Business and a B.A. in mathematical methods in the social sciences and economics from Northwestern University.

Director of National Security Analysis David Mosher
Deputy Director of National Security Analysis Edward G. Keating
Analyst Kathryn McGinnis
Manpower and Support Unit
Analyst Adebayo Adedeji
Analyst Elizabeth Bass
Analyst Heidi Golding
Analyst R. Derek Trunkey
Analyst F. Matthew Woodward
Intern Associate Alia Abdelkader
Intern Associate Illiyuna Islasm
Weapon Systems Unit
Analyst David Arthur
Analyst Michael Bennett
Analyst Corinne Kramer
Analyst Eric J. Labs
Analyst Adam Talaber

Tax Analysis Division

The Tax Analysis Division projects future federal revenues (from individual income taxes, payroll taxes, corporate income taxes, and other sources), using economic models and microsimulation techniques. The division also analyzes the distribution of federal taxes and spending, and it examines how possible changes in tax law would affect the behavior of taxpayers and the overall economy.

Biographies and Staff Listings
Director of Tax Analysis

John McClelland came to CBO in August 2016 following 18 years at the Department of the Treasury. At that agency, he most recently was Special Assistant to the Director of the Office of Tax Analysis (OTA). Before that, at OTA, he was the Director of Revenue Estimating; in that role, he was responsible for the Administration’s estimates of the revenue consequences of all tax proposals. Over the course of his tenure at OTA, he worked on a variety of topics in taxation, with a particular focus on business taxes and the consequences of potential reforms. Earlier in his time at the Treasury Department, he was the analyst responsible for the forecasts of revenues from the corporate income tax and a variety of excise taxes. John McClelland received his doctorate in economics from the University of Maryland, College Park. He received his bachelor’s degree in economics, mathematics, and environmental studies from Bowdoin College, in Brunswick, Maine.

Deputy Director of Tax Analysis

Joseph Rosenberg joined CBO in July 2019. He previously worked at the Urban-Brookings Tax Policy Center, where he built models, conducted analyses, and published papers and reports about individual and corporate income taxes, payroll taxes, estate and gift taxes, excise taxes, carbon taxes, and value-added taxes. He has extensive experience estimating the budgetary, distributional, and economic effects of tax policies; building microsimulation models; and modeling behavioral responses to taxation. He received a B.A. from Colorado College and was a Ph.D. candidate in economics at the University of California, Berkeley.

Director of Tax Analysis John McClelland
Deputy Director of Tax Analysis Joseph Rosenberg
Senior Adviser Kevin Perese
Modeling Unit
Unit Chief Edward Harris
Analyst Bilal Habib
Analyst James Pearce
Analyst Kurt Seibert
Analyst Naveen Singhal
Intern Associate Christopher Hyland
Policy Studies Unit
Analyst Dorian Carloni
Analyst Shannon Mok
Analyst Molly Saunders-Scott
Analyst James Williamson
Revenue Estimating Unit
Unit Chief Joshua Shakin
Analyst Kathleen Burke
Analyst Nathaniel Frentz
Analyst Jennifer Shand
Analyst Ellen Steele
Analyst Omar Morales
Analyst Tess Prendergast