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 are currently providing regular summaries of documented attacks.
- In the Dark: Trump Administration Continues to Cancel and Suppress Information (October 20, 2025)
- As Scientists Raise the Alarm, Trump Administration Attacks Continue (September 15, 2025)
- From the Courtroom to the Internet, the Fight Over Federal Science Is On (July 24, 2025)
- Science Under Fire in Washington (June 12, 2025)
- The State of Science at 100 Days: Co-Opted, Hindered, and Undermined (May 8, 2025)
- A Backward March: Another Month of Attacks on Federal Science (April 2, 2025)
- A Hundred Attacks and Counting: What Happened to Federal Science in February (March 12, 2025)
- How Science Has Fared in the First Two Weeks of the New Trump Administration (January 30, 2025)
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
DOI Ignored Dangers to Marine Mammals from Oil and Gas Operations
The DOI approved hundreds of oil drilling and seismic surveys operations in the Gulf of Mexico without carrying out the analyses required by law to assess the impact on marine mammals and endangered species.
Last Ditch Effort to Limit Science in Endangered Species Act Rescinded
The Secretaries of Commerce and the Interior announced in late April 2009 a decision to overturn the last minute Bush Endangered Species Act Section 7 rule.
Pressure Not to Diagnose PTSD at the U.S. Army and Department of Veterans Affairs
The U.S. Army and Department of Veterans Affairs allegedly pressured psychologists not to diagnose PTSD to free Army from providing long-term, expensive care for soldiers.
Restrictions on the Right to Publish at the EPA
Some EPA divisions have instituted policies that unduly restrict the expression of scientific opinion.
EPA Scientists Restricted From Presenting Findings at Conferences
Interviews with scientists show that in recent years, the EPA restricted its scientists from presenting their research at conferences, thereby impeding the communication and exchange of scientific information.
EPA Scientists Restricted from Speaking Freely with the Media
Information from Environmental Protection Agency (EPA) scientists and EPA policies indicate that the EPA restricts its scientists from speaking freely to the media.
BLM Prevents Listing of Endangered Plant, Promotes Oil Shale Development in Its Habitat
BLM Prevents Listing of Endangered Plant, Promotes Oil Shale Development in Its Habitat.
The FDA Declares that Bisphenol A is Safe, Despite Scientific Evidence
The U.S. Food and Drug Administration (FDA) relied heavily on two industry-funded studies in declaring the chemical bisphenol A (BPA) safe for humans, while ignoring over one hundred scientific studies linking BPA with adverse health effects.
White House Politics Collide With Endangered Right Whale
A rule designed to protect the endangered North Atlantic right whale, issued in October 2008, bears the hallmarks of political interference in science.
Wildlife Manager Pressured on Border Wall
The U.S. Fish and Wildlife Service pressured a veteran wildlife refuge manager to approve plans routing the U.S. / Mexico border wall through the Lower Rio Grande Valley national wildlife refuge.
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