The White House moved on Thursday to tighten control of coronavirus messaging by government health officials and scientists, directing them to clear all statements and public appearance with the office of Vice President Mike Pence, according to several officials familiar with the new approach.

But with Mr. Pence’s announcement, Dr. Birx becomes the third person to be designated as the administration’s primary coronavirus official.
Mr. Trump said that “Mike is going to be in charge, and Mike will report back to me.” Mr. Pence said it will be Dr. Birx. Meanwhile, Alex M. Azar II, the health and human services secretary, remains the chairman of the government’s coronavirus task force.

nytimes.com