Though she retains the title of coordinator of the White House coronavirus response, Birx has not attended any of President Trump’s press briefings on the pandemic since he started them anew in late July, nor was she at a recent event to tout the administration’s advances in testing.

Instead, Birx has been on the road, visiting 36 states and 27 different colleges and universities since the end of June to meet with state, local and university leaders to advise on best practices for containing the coronavirus and to gather information on what’s been working in each place.

Olivia Troye, a former coronavirus task force adviser who worked with Birx and is now a Trump critic, said White House officials grew irritated by Birx’s detailed and data-heavy presentations in the early summer that showed emerging hot spots and difficulties getting the virus under control. Some officials rolled their eyes as Birx delivered a message that clashed with the administration’s preferred narrative that things were improving, Troye said.