On Jul. 7, 2026, the Association of American Universities (AAU) released new data showing that major research universities across the nation accepted 15% fewer applicants to doctoral programs for fall 2026 compared to fall 2025. This marks the second consecutive year in which the data have shown a substantial reduction in the number of new PhD students at major research universities.

This trend should concern everyone, not just higher education leaders. Why? Because a shrinking doctoral pipeline, especially in STEM fields, means a thinner bench of innovators, fewer future scientific and medical breakthroughs, and a diminished capacity for the United States to compete against China and other nations in an increasingly knowledge-driven global economy.

The admissions data, collected by the Association of American Universities Data Exchange (AAUDE) from 55 AAU member institutions, show that the number of doctoral admissions – a measure of universities’ ability to enroll new PhD students – declined 15% overall in fall 2026 compared to last year. The data also show that, while domestic students submitted a higher number of applications (+3%) to doctoral programs, international student applications to PhD programs declined by 21%. This points to a substantial reduction in demand among international students for pursuing research doctoral degrees at U.S. universities.

However, despite the increasing demand for doctoral education from domestic students, the data show that universities’ capacity to support that demand has diminished, leading to cuts in admissions for domestic students as well. Cuts in graduate admissions can be linked directly to the financial uncertainties universities are facing as a result of declining and unpredictable federal research funding.

The U.S. doctoral education system is built around an apprenticeship model in which students work alongside faculty conducting original research while developing the skills needed to become independent scientists and scholars. In fact, doctoral students make crucial contributions to cutting-edge university research aimed at finding new cures, saving lives, developing new technologies, supporting local farmers, and protecting national security.

Since World War II, the United States has relied on a partnership between the federal government and research universities to fund doctoral education. Under this model, federal research grants to universities support both scientific discovery and the training of the next generation of U.S. scientists and engineers. For decades, this dual investment in research and talent development has been a cornerstone of America’s scientific leadership. Today, this model is increasingly under strain.

Since the beginning of last year, federal research agencies such as the National Institutes of Health and the National Science Foundation have been terminating previously awarded grants, facing proposals from the current administration for major cuts to their budgets, and slowing the pace of new awards despite receiving adequate congressional appropriations.

Agencies have also been implementing additional requirements for grant proposals to be reviewed by political appointees, further delaying funding decisions and creating widespread uncertainties about whether certain projects will receive federal funding. As a result, many universities have become more cautious about making long-term commitments to new doctoral students in STEM, whose ability to pursue their education depends heavily on research grants.

Meanwhile, changes in U.S. immigration policy have made international students feel less welcome and universities in other countries have also stepped up their efforts to recruit international STEM talent. The combined shift may well have reduced international student interest in pursuing doctoral education in the United States.