Donald Trump‘s effort to remove historical and scientific content from national parks and monuments has hit a roadblock. In the latest ruling against Trump, a U.S. district court judge said the administration must restore materials that were removed from National Park Service sites. According to The Guardian, the judge said the White House’s actions “set a dangerous precedent of censorship and sanitization.”

Why did Donald Trump order changes to historical displays at national parks?

In an executive order he signed in March 2025, Trump outlined a plan that would significantly target Black history. The president framed the effort as a plan to “restore truth and sanity to American history.”

He specifically ordered his administration to review monuments, memorials, exhibits and interpretive materials that may have been added or revised after the 2020 racial justice protests. The executive order also referenced slavery, civil rights, Indigenous history and climate change, saying these ideas represent a “false construction of American history.”

What did the judge say about Trump’s effort to remove historical content from national parks?

Trump faced pushback from the National Parks Conservation Association, the Association of National Park Rangers and the American Association for State and Local History, which challenged changes to historical displays and educational materials at National Park Service sites.

Massachusetts U.S. District Judge Angel Kelley has now responded to their complaints.

“Under the guise of promoting American dignity, this administration seeks to share a limited history by ordering the removal of all signs, displays, and interpretive exhibits at national parks that do not align with its preferred narrative, thereby telling half-truths,” Kelley said in the ruling, per The Guardian.

Alan Spears, senior director for cultural resources at the NPCA, praised the court’s decision.

“Americans count on national parks to help us understand our full, rich history,” Spears said in a statement, per The Guardian. “Stories of triumph and tragedy alike deserve to be told out loud at parks.”

Emily Thompson, executive director of the Coalition to Protect America’s National Parks, is also relieved to see the ruling.

“National parks exist to preserve and interpret the full American story, not just the parts that make some politicians comfortable,” Thompson said. “This ruling will help ensure that remains the case.”