Dr. Deborah Birx, a leading member of the White House task force combating the coronavirus, and the director of the Centers for Disease Control and Prevention reportedly clashed last week over the veracity of data the center collects regarding cases and deaths.

During what sources characterized as a “heated discussion,” according to to the Washington Post, Birx expressed frustration with Dr. Robert Redfield that the CDC was using an outdated system to track data that might be inflating figures, such as the mortality rate, by as much as 25%.