The White House's FY2027 budget request would cut the National Science Foundation by 54.7% — from $8.8 billion requested for FY26 to $4 billion — while trimming the National Institutes of Health by 12.3% and NASA by 23%, according to the Association of American Universities' April 3 analysis of the proposal.

What changes at each agency

The cuts, if enacted, would reshape federal R&D funding across the largest U.S. research sponsors:

• NSF: $8.8B → $4B (−54.7%); the request does not specify a program-level rationale but aligns with the administration's posture toward basic-research overhead.
• NIH: 12.3% reduction; the proposal would eliminate the National Institute on Minority Health and Health Disparities and recharacterize remaining programs.
• NASA: $24.4B → $18.8B (−23%), including a $3.4B cut to NASA Science, a $297M cut to space technology R&D, and a $143M cut to the Office of STEM Engagement.
• Department of Energy: $53.9B total, up roughly 2% over FY26, but with $32.8B — a 12% increase — directed to the National Nuclear Security Administration, plus additional cuts to climate and environmental-justice research branded in the document as "Green New Scam projects."

Defense spending accounts for $1.5 trillion, a 44% year-on-year increase.

How exposed are universities?

Princeton received $455 million in government-funded grants and contracts in FY2024, including 199 active NIH awards that make up roughly 22% of the university's research portfolio. The institution also spent more than $70 million on NSF-funded R&D in the same year. Researchers there are still recovering from last spring's $210 million federal-grant suspension, of which about half has been reinstated.

The Princeton Plasma Physics Laboratory — a DOE Office of Science user facility managed by the university — already laid off staff in March 2025 as part of a restructuring "to align with sponsor and PPPL priorities and projects, and to ensure that PPPL operates within its available and projected budgets," Deputy Director for Research Jon Menard wrote at the time. Further DOE Science cuts would compound pressure on the lab's fusion and plasma-physics programs. The Space Physics Lab, which relies on NASA Science funding, also faces an uncertain runway if the $3.4 billion Science reduction proceeds.

What the administration says

The White House budget document frames the cuts as a redirection of taxpayer money. "NIH broke the trust of the American people with wasteful spending, misleading information, risky research, and the promotion of dangerous ideologies that undermine public health," the proposal reads. On NASA, it argues that "by cutting unnecessary and overpriced activities, the Budget strengthens [NASA's] focus and ensures that every dollar spent propels America's dominance in the final frontier."

What university groups are warning

The AAU, whose 13-member board includes Princeton President Christopher Eisgruber '83, urged Congress to reject the package in an April 3 statement. "Such a drastic cut would turn the United States overnight from the world's unquestioned leader in biomedical research to last place among our competitor nations — reducing the chances that American science cures cancer, Alzheimer's, or other terminal and debilitating conditions," the statement said.

On NSF, the association warned the cuts would "severely weaken our nation's ability to generate new fundamental knowledge and the cutting-edge scientific breakthroughs that have served as the foundation for the development of whole new industries in biotech, information technology, and artificial intelligence." It added that proposed cuts to NASA and DOE research agencies "would hobble the broader American scientific enterprise at a crucial time when dominance in emerging technologies like artificial intelligence and quantum computing is essential to keeping Americans safe and prosperous."

What's the timeline from here?

Congress is expected to begin marking up the FY27 request in May, with a potential floor vote in August. The precedent from FY26 is encouraging for research advocates: the administration proposed similar cuts last year, and Congress largely held NSF, NASA and DOE Science funding flat.

"We urge Congress, [as they did with the FY26 budget], to reject these short-sighted cuts and increase investments in America's scientific enterprise to ensure that our nation continues to lead the world — and that all Americans keep benefiting from the greatest research-and-innovation engine the world has ever known," the AAU wrote.

For R&D managers planning FY27 staffing, postdoc offers and capital purchases, the binding question is whether appropriators repeat the FY26 pattern of overriding the White House's top-line R&D cuts — a variable that will resolve over roughly four months of committee work.