The Trump administration is evidently extending its control of cultural representation at the Smithsonian, the world’s largest museum and research complex.

In a letter obtained by the Wall Street Journal, the White House told the Smithsonian that it plans a wide review of exhibitions, materials and operations ahead of the US’s 250th anniversary celebrations in 2026.

The letter to Lonnie Bunch, the secretary of the Smithsonian Institution, from Trump administration officials said the White House wants the museums’ program to reflect “unity, progress, and enduring values that define the American story” in keeping with an executive order issued in March that ordered the elimination of “improper, divisive or anti-American ideology” from the Smithsonian and its museums.

Donald Trump’s order from March, titled Restoring Truth and Sanity to American History, said the president “aims to ensure that the Smithsonian is an institution that sparks children’s imagination, celebrates American history and ingenuity, serves as a symbol to the world of American greatness, and makes America proud”.