From your article about Birx:
Trump’s tweet marks a shift in tone toward Birx, the White House’s Covid-19 coordinator who had reportedly stayed in good standing with the president throughout much of the pandemic.
Birx’s sobering comments came days after Pelosi had slammed her as “the worst,” in a closed meeting with White House officials, Politico reported Friday.
“Wow, what horrible hands you’re in,” Pelosi reportedly said of Birx in the meeting with Treasury Secretary Steven Mnuchin and White House chief of staff Mark Meadows.