Washington — Republican Sen. Rand Paul of Kentucky has released more than a thousand pages of journal entries from Dr. Anthony Fauci, teeing up what is likely to be a contentious hearing with the nation’s former top infectious disease expert on Wednesday about the origins of the COVID-19 pandemic.
Paul, who heads the Senate Homeland Security Committee, subpoenaed Fauci to appear before the committee as part of the panel’s investigation into the origins of the coronavirus. Paul, who has pushed the theory that the virus emerged from a leak at the Wuhan Institute of Virology in China rather than spilling over from animals to humans naturally, has long accused Fauci and other government officials of misleading the public and Congress about the source of the outbreak.
The journal entries date from December 2019, in the days leading up to the U.S. declaring a public health emergency, until December 2022, when Fauci stepped down as the director of the National Institute of Allergy and Infectious Diseases, a position he held for nearly four decades.
Many scientists believe the evidence suggests that the virus emerged naturally from infected bats before it circulated to other species and spread to humans who were handling those animals at a market in Wuhan, where the first human cases appeared in late 2019. But the FBI has assessed the coronavirus “most likely” emerged in a “lab incident in Wuhan.” In January 2025, the CIA issued a new assessment that favored the “lab leak” hypothesis, though it said the finding was made with “low confidence.”
Some of Fauci’s diary entries reflect early uncertainty about the source of the pandemic. In January 2020, he wrote that “we know the market was not the source, it was the amplifier,” though he added that “somewhere the virus jumped from animals to humans.” About a week later, he referenced a conference call in which several top infectious disease experts thought the coronavirus might not have originated in nature.
Paul on Monday accused Fauci of saying one thing to “Dear Diary” while telling the public “it’s implausible that it came from the lab, and we’re really convinced it came from these wild animals in the marketplace. But that level of dishonesty is really astounding.”
In an entry dated May 26, 2021, Fauci wrote, “The situation continues to get ‘out of control’ with regard to the press reports concerning my ‘flip flopping’ concerning the theory of the origin of the virus. I had always said that the very highly likelihood is that the virus originated naturally from an animal reservoir jumping to a human. However, over the past couple of days given the amount of speculation about the possibility of a lab leak I have been saying that no one is 100% certain of the origin including me and so I am calling for a thorough investigation.”
Many of Fauci’s diary entries note his interviews with the media, as well as his interactions with President Trump and other officials. At certain points, Fauci sounded bemused or bewildered by the sudden rush of attention and the “cult hero”-style fandom that he drew in some quarters near the start of the pandemic.
“It is not hyoperbole [sic] to say that today I am the most famous and talked about person in the country and one of the most recognizable peson [sic] in the world,” Fauci wrote in a May 21, 2020, entry. “POTUS seems to be enamored of me even though I am taking the spotlight away from him. We are developing a very unique and interesting relationship.”
