In an interview with the subcommittee, Birx said when she arrived to the White House in March 2020 — more than a month after the U.S. declared a public health emergency — she learned that federal officials had not yet contacted some of the largest U.S. companies that could supply Covid testing.

Birx also told the panel that Atlas and other Trump officials “purposely weakened CDC’s coronavirus testing guidance in August 2020 to obscure how rapidly the virus was spreading across the country,” the report said. The altered guidance recommended that asymptomatic people didn’t need to get tested, advice that was “contrary to consensus science-based recommendations,” it said, adding, “Dr. Birx stated that these changes were made specifically to reduce the amount of testing being conducted…

The subcommittee also found in its investigation that the Trump White House blocked requests from the Centers for Disease Control and Prevention to conduct public briefings for more than three months. That move followed a late-February 2020 briefing in which a top CDC official “accurately warned the public about the risks posed by the coronavirus,” it said.