Dr. Deborah Birx revealed in a CNN documentary clip released Sunday that she received a “very uncomfortable” and “very difficult” phone call from Donald Trump after speaking publicly about the spread of Covid-19 while serving in the former President’s administration.Dr. Deborah Birx revealed in a CNN documentary clip released Sunday that she received a “very uncomfortable” and “very difficult” phone call from Donald Trump after speaking publicly about the spread of Covid-19 while serving in the former President’s administration.