President Trump's adviser leading a review of Smithsonian museums' content defended the move as shifting the focus to progress, rather than dwelling on past mistakes, and argued that the museums should be geared toward pride in America's growth.

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.

The institution's American history museum, natural history museum, African American history museum and American Indian museum are all affected.