Sen. Rand Paul says a fellow Republican chairman is actively working to keep his committee from seeing classified documents tied to gain-of-function research, and has written to the intelligence community to make sure of it.
Paul, who chairs the Senate Homeland Security and Governmental Affairs Committee, named Senate Intelligence Committee Chairman Tom Cotton directly in a Thursday interview with Just The News. Paul alleged that Cotton wrote to the Director of National Intelligence requesting that no information about gain-of-function programs be shared with Paul's panel.
The accusation marks a sharp, public rupture between two senior Republican senators over who controls access to some of the most sensitive biodefense research the federal government has funded, and whether any independent scientists are reviewing it at all.
Paul did not hold back about the source of the blockade. He described a jurisdictional standoff inside the Republican-controlled Senate, with Cotton using his Intelligence Committee chairmanship to gate-keep classified material that Paul's committee wants for its ongoing investigation into gain-of-function research.
"So Tom Cotton is the chairman of the Intelligence Committee. He is doing everything he possibly can to prevent us from getting information about these programs. He has written to the Director of National Intelligence and said that he does not want any information shared with our committee."
Paul added that even if classified documents were routed through Cotton's committee, access would remain at Cotton's discretion. "If it goes to him, he might condescend if he decides to do so, to let us look at some information," Paul said.
Cotton did not immediately respond to a request for comment. Neither did the Office of the Director of National Intelligence.
The dispute is unusual. Intraparty fights over committee jurisdiction happen routinely, but they rarely spill into public view, and they almost never involve one chairman accusing another of writing formal letters to intelligence officials to shut down an investigation. The fact that both men are Republicans makes the confrontation harder to dismiss as partisan theater. This is a fight over transparency within the majority's own ranks.
Paul's committee has already unearthed documents that raise their own questions. The panel obtained an undated interagency agreement between the CIA and the National Institute of Allergy and Infectious Diseases, the NIH division once led by Anthony Fauci, calling for collaboration on "forensic microbiology" related to bioterrorism agents. The Daily Caller News Foundation first reported that Fauci's institute entered into secret agreements with the CIA to conduct biodefense research in the early 2000s.
A separate public CIA document from roughly the same period indicates the agency may have recruited virologists as intelligence informants in laboratories abroad. Together, the documents sketch a picture of deep, largely hidden ties between the U.S. intelligence community and the kind of virology research that has drawn intense scrutiny since the COVID-19 pandemic.
Paul has long investigated ties between the Wuhan coronavirus lab and Fauci's NIH institute. His confrontations with Fauci became some of the most-watched moments in recent Senate history, including a hearing where Fauci's attorney was removed and the former COVID czar pleaded the Fifth more than a hundred times.
What Paul wants now goes beyond Fauci. He wants independent scientists, ones with security clearances and genuine skepticism, to conduct risk-benefit analyses of gain-of-function research programs carried out on behalf of the intelligence community.
"But the problem is what we really need are scientists. And even when I oversee this, I ask the opinion of scientists because it's classified. We have no assurance that any scientists with any kind of skepticism are looking over this and saying whether we should be doing this or not, and if you want to be alarmed by this."
That concern is not abstract. If the research is classified, and the committee with jurisdiction over it has no interest in outside scientific review, then the programs effectively police themselves. No external check exists.
The accountability gap extends beyond Congress. A 2024 Pentagon Inspector General report found that government watchdogs could not adequately estimate the amount of funding that flowed from the American military to foreign labs for gain-of-function research, because the Pentagon had not thoroughly tracked it. The report did not produce a specific dollar figure. The money went out, but no one kept a reliable count of where it landed or what it paid for.
That finding adds weight to Paul's argument. If the Defense Department itself cannot account for its own gain-of-function expenditures abroad, the case for robust congressional oversight grows stronger, not weaker. Blocking a Senate committee from reviewing classified documents about those same programs looks less like jurisdictional housekeeping and more like institutional resistance to scrutiny.
The dynamic in the Senate has echoes of other recent clashes where Republican leadership struggled to align on oversight and confirmation priorities.
Cotton was among the first public officials to voice the possibility that COVID-19 originated in a Wuhan laboratory. He said so in early 2020 and took heavy criticism from major media outlets for it. A New York Times piece from February 17, 2020, was part of the blowback. Cotton's early willingness to press the lab-leak theory earned him credibility on the right.
That history makes his alleged resistance to Paul's investigation harder to explain. A senator who staked his reputation on demanding answers about Wuhan is now, if Paul's account is accurate, working to prevent another senator from getting those answers through classified channels. Paul described the situation bluntly: "There's an internal fight in Congress."
Neither Cotton nor the ODNI has offered a public justification for the alleged letter or the information blockade. Without a response, the public is left with Paul's account and no rebuttal.
While this fight plays out, the federal government is expanding the very programs at issue. NIH Director Jay Bhattacharya unveiled an agreement with the Pentagon earlier in September 2026 to further integrate the military and the institutes' biodefense research. The specific terms of that agreement have not been publicly detailed.
The timing matters. At the same moment one Senate chairman is trying to review the history and oversight of classified gain-of-function work, the executive branch is building new partnerships that will generate more of it. If the existing programs lack adequate tracking, as the Pentagon IG found, and if congressional access to the classified details depends on the goodwill of a single committee chairman, the oversight structure has a serious gap.
Broader fractures across party lines in Congress have made legislative priorities harder to manage this session, but the Paul-Cotton standoff is different. It is not about ideology. It is about whether one Republican will let another Republican look at the documents.
Several key questions remain unanswered. Has Cotton's letter to the Director of National Intelligence been obtained or published? What specific gain-of-function programs are at issue? On what jurisdictional basis does the Intelligence Committee claim sole authority over documents that touch biodefense, public health, and homeland security? And are any independent scientists currently cleared to review the classified work Paul describes?
Paul has not said whether he plans to subpoena the documents or pursue other procedural tools to force disclosure. But his decision to go public, naming Cotton by name, on the record, in a media interview, suggests he has concluded that quiet negotiation failed.
The pattern in Washington is familiar enough. Senators regularly discover that the powers they tolerate in silence become problems only when someone else wields them. Cotton's authority over classified intelligence documents is routine in theory. In practice, it becomes a chokepoint the moment another chairman needs what sits behind it.
Taxpayers funded the research. Taxpayers lived with the consequences of a pandemic whose origins remain disputed. If the classified answers exist, the people who paid for them deserve a Congress willing to look, not one where the filing cabinet is locked and the key holder won't return calls.