FILE - In this March 31, 2020, file photo, Dr. Deborah Birx, White House coronavirus response coordinator, speaks about the coronavirus in the James Brady Press Briefing Room of the White House in Washington. Birx was brought into President Donald Trump’s orbit to help fight the coronavirus, she had a sterling reputation as a globally recognized AIDS researcher and a rare Obama administration holdover. Less than 10 months later, her reputation is frayed and her future in President-elect Joe Biden's administration uncertain. (AP Photo/Alex Brandon, File)

FILE - In this March 3, 2020, file photo, White House coronavirus response coordinator Dr. Deborah Birx, with, from left, Vice President Mike Pence, administrator of the Centers for Medicare and Medicaid Services Seema Verma, and Department of Health and Human Services Secretary Alex Azar, speaks to reporters during a briefing on coronavirus in the Brady press briefing room of the White House in Washington. Birx was brought into President Donald Trump’s orbit to help fight the coronavirus, she had a sterling reputation as a globally recognized AIDS researcher and a rare Obama administration holdover. Less than 10 months later, her reputation is frayed and her future in President-elect Joe Biden's administration uncertain. (AP Photo/Manuel Balce Ceneta, File)

FILE - In this April 22, 2020, file photo, President Donald Trump listens as Dr. Deborah Birx, White House coronavirus response coordinator, speaks about the coronavirus in the James Brady Press Briefing Room of the White House in Washington. Birx was brought into President Donald Trump’s orbit to help fight the coronavirus, she had a sterling reputation as a globally recognized AIDS researcher and a rare Obama administration holdover. Less than 10 months later, her reputation is frayed and her future in President-elect Joe Biden's administration uncertain. (AP Photo/Alex Brandon, File)

FILE - In this April 20, 2020, file photo, Dr. Deborah Birx, White House coronavirus response coordinator, speaks about the coronavirus in the James Brady Press Briefing Room of the White House in Washington. Birx was brought into President Donald Trump’s orbit to help fight the coronavirus, she had a sterling reputation as a globally recognized AIDS researcher and a rare Obama administration holdover. Less than 10 months later, her reputation is frayed and her future in President-elect Joe Biden's administration uncertain. (AP Photo/Alex Brandon, File)

FILE - In this Nov. 19, 2020, file photo, White House Coronavirus Response Coordinator Dr. Deborah Birx speaks during a news conference with the coronavirus task force at the White House in Washington. Birx was brought into President Donald Trump’s orbit to help fight the coronavirus, she had a sterling reputation as a globally recognized AIDS researcher and a rare Obama administration holdover. Less than 10 months later, her reputation is frayed and her future in President-elect Joe Biden's administration uncertain. (AP Photo/Susan Walsh, File)

FILE - In this Aug. 5, 2020, file photo, Dr. Deborah Birx, White House coronavirus response coordinator, speaks as President Donald Trump meets with Arizona Gov. Doug Ducey in the Oval Office of the White House in Washington. Birx was brought into President Donald Trump’s orbit to help fight the coronavirus, she had a sterling reputation as a globally recognized AIDS researcher and a rare Obama administration holdover. Less than 10 months later, her reputation is frayed and her future in President-elect Joe Biden's administration uncertain. (AP Photo/Andrew Harnik, Pool, File)