Attacks on Science

Published Jan 20, 2017 Updated Jun 23, 2026

This page represents our work covering attacks on science under previous administrations. Our new tracker, covering attacks on science under the second Trump administration, can be found here. The methodology and other resources for this new tracking system can be found here.

Science is at the core of a healthy democracy. But for years, presidential administrations have, in differing ways, sidelined scientific evidence and attacked scientific integrity.

Due to the large number of attacks on science we’re seeing from the second Trump administration, we have provided regular summaries of documented attacks.

Below is the list of documented attacks on science that occurred under the four previous administrations. They include disappearing data, silenced scientists, suppressed studies, and other assaults on science-based policy. More information on these attacks can be found in our peer-reviewed study and in our data repository.

Attacks on science

U.S. Surgeon General Muzzled by Political Appointees

Former Surgeon General Richard H. Carmona charged the Bush administration with unprecedented levels of political interference in his work as the nation’s doctor, compromising his ability to deliver the best available public health science to Americans.

BLM Cuts Forest Grant after Study Criticizes Tree Cutting

In February 2006, the federal Bureau of Land Management suspended an Oregon State University grant after university researchers published a study in the journal Science concluding that logging in the wake of an Oregon fire retarded the forest’s recovery.

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