Up to date at 12:29 p.m. on December 17, 2025
When Donald Trump nominated Jay Bhattacharya to be the director of the Nationwide Institutes of Well being, a shake-up appeared inevitable. Usually, the company—a $48 billion grant-making establishment and the world’s largest public funder of biomedical analysis—has been led by a medical researcher with in depth administrative expertise. Bhattacharya was a well being economist with out specialised coaching in infectious illness, who’d come to prominence for his heterodox views on COVID insurance policies and who has criticized the NIH for stifling dissent.
The NIH has been remodeled this 12 months. And many of the layoffs, coverage adjustments, and politically motivated funding cuts—notably, to infectious-disease analysis—have occurred underneath Bhattacharya’s watch. However contained in the company, officers describe Bhattacharya as a largely ineffectual figurehead, usually absent from management conferences, unresponsive to colleagues, and fixated extra on cultivating his media picture than on participating with the turmoil at his personal company. “We don’t actually hear from or about Jay very a lot,” one official instructed me. (Many of the present and former NIH officers who spoke with me for this text requested anonymity out of concern of retaliation.) Many officers name Bhattacharya “Podcast Jay” due to the period of time that he has spent in his workplace recording himself speaking. “Bhattacharya is simply too busy podcasting to do something,” one official instructed me.
As a substitute, Matthew Memoli, the company’s principal deputy director, “is the one wielding the axe,”the official stated. This time final 12 months, Memoli was a comparatively low-ranking flu researcher on the NIH’s Nationwide Institute of Allergy and Infectious Illnesses (NIAID). Then, in January, the Trump administration appointed him to be the company’s appearing director. On the time, different NIH officers thought of Memoli to be a placeholder, briefly empowered to hold out the administration’s orders. However “there’s been no change since Jay bought put in,” one NIH official instructed me. To the company officers I spoke with, Memoli, now second in command, nonetheless seems to be very a lot in cost.
Neither Bhattacharya nor Memoli agreed to an interview; the Trump administration responded to my request for remark after this story was printed. This account did “not replicate Dr. Bhattacharya’s management strategy or the way in which selections are made at NIH,” Andrew Nixon, a spokesperson for the Division of Well being and Human Companies, stated in an e mail. “Dr. Bhattacharya has deep respect for the company, its employees, and its scientific mission, which is rooted in gold-standard science and within the pursuits of public well being.”
To raised perceive Bhattacharya and Memoli’s management, I spoke with 18 present and former NIH officers, whose positions on the company have spanned a breadth of specialties and administrative roles, and reached out to a number of of Bhattacharya’s former colleagues. The officers’ first impressions of Bhattacharya—who has argued that the NIH may do extra “to advertise modern science”—have been of an outsider and a radical, whose concepts may have modified the company for higher or worse. In current months, NIH officers have come to see him as so disengaged that they hardly fear about his impression. Memoli, against this, is aware of simply sufficient concerning the company—and, specifically, its strategy to infectious illness—to assist destroy it.
Memoli’s appointment to appearing director in January floored his colleagues—a lot of whom had by no means heard his identify earlier than. Like Bhattacharya, Memoli had no earlier observe document of govt management or in overseeing the awarding of federal grants. However officers shortly deduced what about Memoli may need appealed to the administration: In 2021, he described COVID-vaccine mandates as “terribly problematic” in an e mail to Anthony Fauci, then the director of NIAID, whom the Trump administration has repeatedly tried to discredit. Then, final 12 months, when requested to submit a routine assertion about variety, fairness, and inclusion, Memoli despatched in one which known as the time period DEI “offensive and demeaning.” By September, the NIH, underneath Bhattacharya’s management, had performed away with DEI statements for its scientists, describing them as “loyalty oaths” that Memoli had “courageously stood towards.”
In his two months as appearing director, Memoli enacted the Trump administration’s agenda with aplomb, pushing by means of the mass cancellation of grants targeted on subjects resembling DEI, transgender well being, and COVID-19; a number of NIH leaders have been ousted whereas he was appearing director, together with Jeanne Marrazzo, who served because the director of NIAID till early April. “His main operate was to do the administration’s bidding,” Michael Lauer, who led the NIH’s grant-making division earlier than he departed the company in February, instructed me.
That very same month, whereas Memoli was nonetheless appearing director, he started to name Well being Secretary Robert F. Kennedy Jr.’s consideration to the flu-vaccine analysis he’d performed along with his mentor, Jeffery Taubenberger, one other NIAID scientist. By early Could—after Memoli had been put in as Bhattacharya’s deputy, and Taubenberger because the appearing director of NIAID—HHS had redirected about half a billion {dollars}, as soon as put aside to develop new COVID-19 vaccines and medicines, to their vaccine work. (Outdoors researchers criticized the grant as an unjustifiably monumental sum; in an e mail to me in Could, Memoli insisted that the grant would help “multiple undertaking,” however didn’t reply follow-up questions on how a lot of that sum would furnish his analysis particularly.)
A part of a deputy’s job is to take some load off the director. However underneath regular circumstances, folks “wouldn’t actually discover who the deputy director is,” one official instructed me; the director is predicted to set coverage and lead. Though Bhattacharya has continued to reiterate his personal targets for the NIH—together with advancing extra modern analysis—his current visions for the company have largely adopted administration speaking factors resembling diverting assets towards power illness and clamping down on “harmful” virological analysis. But the director appears out of contact with the truth of that agenda: In his public appearances, inside conferences, and on social media, Bhattacharya has delivered conflicting and generally misguided accounts of the NIH’s grant-making insurance policies. Each publicly and internally, he has fixated extra on defending himself towards criticism he acquired for his COVID-policy views from 2020 than on the NIH’s present state of affairs, a number of officers stated.
Bhattacharya, in his personal means, nonetheless appears to be serving the administration by championing its speaking factors. However Memoli is the one most visibly throttling the NIH’s capability to fund analysis and pushing out a number of the company’s most skilled and internally revered leaders. To officers on the company, his actions appear to be these of a frontrunner who has been given broad discretion to shrink down the company’s infectious-disease work—an space the place he could have a couple of private grievances. “Persons are afraid of him,” one official stated, pausing. “I’m afraid of him.”
Memoli’s historical past on the NIH seems to have given him a selected zeal for dismantling it. In his 20 years on the company, Memoli has developed a repute as a self-aggrandizing co-worker, desirous to champion himself and dismissive of individuals he hasn’t felt he may gain advantage professionally from, three officers who labored with him previous to 2025 instructed me. At numerous factors, scientists on the company lodged complaints about his unprofessional conduct towards colleagues, two NIH officers instructed me. Memoli, in the meantime, complained that “he wasn’t being given sufficient,” considered one of them stated. A few of his scientific work was strong, however friends inside and outdoors the company criticized some as unremarkable, leaving Memoli with a chip on his shoulder, the 2 officers stated.
Of the NIH’s 27 institutes and facilities, NIAID, the place Memoli as soon as labored, has been among the many hardest hit this 12 months, shedding most of its senior management and numerous its infectious-disease-focused grants. Since January, a number of officers who denounced the administration’s stance on infectious ailments and vaccines have had Memoli brush apart their considerations in conferences, then been ousted from their roles, three officers instructed me.
Given the Trump administration’s need to pare down infectious-disease analysis, NIAID and outstanding officers resembling Marrazzo, who succeeded Fauci as director, have been at all times clear targets for cuts. (Yesterday, Marrazzo filed a lawsuit that named Memoli and Bhattacharya and that alleged that she was illegally fired after she had filed a whistleblower grievance about actions of NIH management that endangered public well being; HHS declined to touch upon the lawsuit.) However in some instances, three officers instructed me, Memoli seems to have pushed lesser-known officers out of their roles after extra private clashes, together with Sarah Learn, who was NIAID’s principal deputy director and who repeatedly questioned the circumstances of Memoli and Taubenberger’s sizable vaccine grant. (Learn has since left the company.) Memoli additionally not too long ago detailed Carl Dieffenbach, the director of NIAID’s Division of AIDS, to a different department of NIH after the 2 clashed over the administration’s strategy to HIV analysis. Days later, he gave Dieffenbach a scoring of 1 out of 5 on a efficiency evaluation—potential grounds for termination—earlier than human-resources personnel compelled him to revise that ranking, as a result of he lacked proof for them, two officers instructed me. (Learn and Dieffenbach declined to remark.)
Memoli has additionally argued that funding for HIV-vaccine analysis—which Dieffenbach oversaw—is wasteful and must be reduce. The NIH is predicted to quickly divert as much as a 3rd of its AIDS funds towards enhancing the supply of present HIV instruments, resembling the brand new drug lenacapavir. A minimum of a few of that push has come from Bhattacharya, who has publicly advocated (together with on his personal The Director’s Desk podcast) for reallocating HIV funds on the grounds that established interventions may resolve the AIDS disaster on their very own. However whereas Bhattacharya has waffled when requested how such an funding would have an effect on different analysis, two officers instructed me, Memoli has insisted in inside conferences that it ought to come on the expense of analysis into HIV vaccines, which is broadly thought of to be important to ending the HIV pandemic. Regardless of being a vaccine researcher himself, he’s “gleefully making these cuts,” one official instructed me. “As a result of it means he did one thing.”
Permitting Memoli to be the executor of the Trump administration’s cuts may serve the independent-thinker persona that Bhattacharya has tried to domesticate. However the NIH officers I spoke with, and one scientist who knew Bhattacharya previous to his appointment on the company, doubted that his distance was so calculated. Making an attempt to discredit the scientific institution from the sidelines is way simpler than attempting to enact reform from its heart. On the NIH, the embittered insider could depart the extra memorable legacy.
This story was up to date to incorporate a remark from the Division of Well being and Human Companies.