UPenn climate professor under fire after invoking ‘second amendment territory’ over Trump education ruling

University of Pennsylvania climate professor Michael Mann and US President Donald Trump. (Getty Images)

A University of Pennsylvania climate professor and senior administrator has sparked controversy after suggesting the country is in “second amendment territory” if President Donald Trump does not comply with a federal court ruling blocking his efforts to dismantle the Education Department. Michael Mann made the remarks on social media, prompting backlash and widespread criticism from various commentators and political observers.The comment came after a federal judge issued an injunction that halted Trump’s plan to close the Education Department and reinstate over 1,300 employees who were facing mass termination. Trump had issued an executive order in March directing the department to be shut down, arguing that states are better suited to handle its core functions, as reported by The College Fix and Free Beacon.Second amendment territory comment triggers backlashMann wrote on Bluesky, “If Trump doesn’t comply, we’re in second amendment territory,” a statement that many took as a call for armed resistance. The post was deleted shortly afterward amid the backlash. However, Mann doubled down in a follow-up post, explaining that the second amendment “refers to the right of the people to rise up and defend democracy,” and accused critics of being “very dishonest” to interpret his words as a threat against Trump, according to The College Fix.Despite Mann’s clarification, social media accounts such as Libs of TikTok tagged the FBI, accusing him of calling to “kill Trump and Trump officials,” as mentioned by Headline USA. Journalist Paul D. Thacker also commented that Mann “appears to be calling for armed resistance,” highlighting the intensity of reactions on social media platforms.Legal troubles and university tensionsMann’s controversial remarks come amid a series of legal and institutional challenges he has faced. In 2025, a Washington, D.C., court ordered Mann to pay over $1 million to cover litigation costs after he was sanctioned for providing misleading information during a defamation suit against conservative bloggers and commentators, as reported by Headline USA and Free Beacon.The climate scientist has also found himself at the center of tensions between academia and the Trump administration. The administration recently cut billions of dollars in federal funding to universities, including the University of Pennsylvania, due to alleged failures in handling anti-Semitism on campuses, pro-Hamas attitudes, and diversity, equity, and inclusion (DEI) programs.Read Also: Who is UPenn climate professor Michael Mann? A look at his career, controversies, and contributions to climate scienceIn April 2025, the Department of Education’s Office for Civil Rights froze $175 million in funding for UPenn over its decision to allow a biological male to compete on the women’s swim team, which the office said violated equal opportunities for women. The university president condemned the funding freeze, warning it “will be felt by society,” according to the Free Beacon.Mann’s political and social media presenceMann has been outspoken on several controversial issues beyond climate science. He recently criticized the US Department of Education’s “End DEI” reporting portal, likening it to a program he said “Hitler had,” as reported by The College Fix. He has also warned about climate change effects and advocated for getting off fossil fuels to prevent future crises.The professor’s social media activity and statements have drawn parallels to other public figures who faced scrutiny for incendiary remarks. For example, Stanford fellow Scott Atlas called for people to “rise up” during Covid-19 restrictions, which student newspapers interpreted as incitement to violence, noted in the original articles.University of Pennsylvania and federal responseUPenn has not publicly responded to requests for comment on Mann’s statements, while spokespeople for the FBI and DOJ have been silent or unresponsive as of this writing, according to reports from Headline USA and Free Beacon. Mann’s position as the inaugural vice provost for climate science, policy, and action, appointed in late 2024, places him in a prominent role at the university, intensifying attention on his remarks.The controversy underscores growing political polarization surrounding academic figures and their role in public discourse, especially as it relates to high-stakes political conflicts involving the Trump administration.