In the long contest over who holds the authority to name the past, President Trump has turned to sidewalk signage outside the Smithsonian's National Museum of American History — a modest but pointed gesture that reveals how deeply contested the meaning of American identity has become. Unable to reach inside the museum's constitutionally insulated walls, the administration has planted its argument at the threshold, directing visitors toward what it calls accurate history. This is not merely a dispute about exhibits; it is a struggle over which stories a nation chooses to honor, and who is grant