Over a nearly 40-year career at the head of the National Institute of Allergy and Infectious Diseases, Anthony Fauci, MD, has seen a seismic shift in the way that science is communicated to and received by the public. In conversation with JAMA Network Editor in Chief Kirsten Bibbins-Domingo, PhD, MD, MAS, Fauci reflects on his career at NIAID, the joys and challenges of advising 7 presidents, and shares his strategies for communicating scientific information in an ever-changing environment. Related Content: Dr Fauci and the Art of Science Communication Dr Anthony Fauci—Communicating Science in a Polarized Era