Lonnie G. Bunch III, the Smithsonian Institution’s 14th Secretary and its first Black leader, is retiring. His decision to step down lands at a moment of intensified political headwinds, with the Trump administration ramping up criticism of the museum complex that has long stood as an American cultural cornerstone.

Bunch, 71, took the helm of the Smithsonian in 2019 after a distinguished career as a historian and museum director. He was the founding director of the National Museum of African American History and Culture, which opened on the National Mall in 2016 to wide acclaim. That museum, with its unflinching look at slavery, segregation, and Black achievement, became a symbol of America’s reckoning with its past — and also a lightning rod for conservative backlash.

Under Bunch’s leadership, the Smithsonian expanded its virtual programming during the pandemic, grew its collection of underrepresented voices, and launched initiatives to address systemic inequities within its own workforce. He often spoke about the need for museums to act as “safe, brave spaces” for difficult conversations. Yet that very approach drew fire from right-wing activists and political figures who argued the institution had strayed from neutrality into activism.

The Trump administration, during its final years and through its current campaign for a second term, has singled out the Smithsonian for particular criticism. Former President Trump and his allies have accused the institution of promoting “critical race theory” and “woke ideology.” In a statement, Bunch’s office did not directly link his retirement to this pressure, but the timing is hard to ignore. Sources within the Smithsonian, speaking on condition of anonymity, say the political climate has created a “challenging environment” for leadership.

Bunch’s tenure saw the Smithsonian navigate not only political storms but also the practical crisis of the COVID-19 pandemic, which shuttered its museums for months and forced a rethinking of how to engage the public. He pushed through a major digital transformation, ensuring that millions of artifacts and research materials became accessible online. He also oversaw the completion of several new galleries and the launch of the Smithsonian’s first-ever Latinx museum study.

Yet the institution remains deeply vulnerable to political pressure. Congress controls roughly two-thirds of its annual budget, and the Trump administration has threatened to slash funding if the Smithsonian does not “correct” its approach to exhibits on race and American history. Bunch, in public appearances, has defended the institution’s editorial independence, but acknowledged that “museums are not islands” and must answer to their stakeholders.

The Board of Regents will soon begin a search for the next Secretary, a process expected to take months. Candidates will face a delicate task: maintaining the Smithsonian’s global reputation for scholarship while managing an increasingly partisan funding environment. Bunch’s departure leaves a vacuum at a critical juncture — the institution’s 175th anniversary approaches in 2026, and plans for a National Museum of the American Latino and a women’s history museum are in early stages.

For many, Bunch’s legacy is already secure. He broke a color barrier that had stood since the Smithsonian’s founding in 1846. He brought African American history into the mainstream. And he did so with a quiet dignity that earned respect even from some critics. As one colleague put it: “Lonnie didn’t just run the Smithsonian — he embodied its highest ideals.”

Now, with his retirement, the question becomes whether those ideals can survive the political storm.