Dr. Marcum is a Senior Statistician and Senior Scientist in the Office of the Chief Statistician of the United States at the White House Office of Management and Budget. His portfolio focuses on data access, science and information policy, cybersecurity, and artificial intelligence. He is the Senior Advisor to the Federal Statistical Research Data Centers and the staff lead on matters related to scientific integrity and research security. Immediately, prior to his current role, Dr. Marcum served in the Biden-Harris Administration as the Assistant Director for Open Science and Data Policy in the White House Office of Science and Technology Policy (OSTP). Dr. Marcum oversaw transformative science policies in his OSTP portfolio that led to the 2022 OSTP Public Access Memo, the 2023 Federal Scientific Integrity Framework, and the White House declaring the 2023 as a Year of Open Science. Dr. Marcum received his Ph.D. in sociology from the University of California, Irvine (UCI) in 2011. He also has a Master’s degree in demographic and social analysis from UCI and completed a post-doctoral fellowship in economics and statistics at the RAND Corporation. After his formal training, he joined the intramural research faculty of the National Human Genome Research Institute (NHGRI) at the National Institutes of Health (NIH) as a staff scientist and methodologist where his research focused on social networks and health. Eventually, he moved into science policy at the NIH and was appointed to be the Genomic Program Administrator and chair of the Data Access Committee at the National Institute of Allergy and Infectious Diseases (NIAID). His professional accolades include over fifty scientific publications, a commendation of exceptional service from OSTP, two Special Act or Service Award honors from NIAID, a Matilda White Rile Early Stage Investigator Honor from the Office of Behavioral and Social Science Research at the NIH, two GREAT Awards from the NHGRI, an Order of Merit Award from the University of California-Irvine, and two On-the-Spot Awards and an Achievement Award from the Office of Management and Budget. He is a fellow of the Gerontological Society of America, nominated by his peers for his research, training, and advocacy on issues related to aging and the life course.