The White House is conducting a comprehensive internal review of exhibits and materials at the Smithsonian Institution in an effort to comply with President Donald Trump’s directive about what should and shouldn’t be displayed.

The Trump administration announced an expansive review of some of the Smithsonian’s museums in an effort to ensure “alignment” with the president’s view of history.

In a letter to the Smithsonian’s leader, White House officials said they would review exhibition text, curation, exhibition planning and collections starting with eight museums.