In March, he signed an executive order titled "Restoring Truth and Sanity to American History," which accused the Smithsonian of coming under the influence of a "divisive, race-centered ideology" and sought to remove what it described as "improper ideology" from the institution's museums.

The Nazis list of artworks deemed “degenerate” offers a disturbing parallel for a new list of Smithsonian museum exhibits targeted by the Trump White House, released Thursday.