FILE - Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases, listens as President Donald Trump speaks during a coronavirus task force briefing at the White House, April 4, 2020, in Washington. Fauci, the nation's top infectious disease expert who became a household name, and the subject of partisan attacks, during the COVID-19 pandemic, announced Monday he will depart the federal government in December after more than 5 decades of service. (AP Photo/Patrick Semansky)