This is what CNN says about that and I agree.
"It's likely no one from the White House gave the National Archives orders to alter the image. Instead, it seems the museum -- an independent organization that seeks to "cultivate public participation, and strengthen our nation's democracy through public access to high-value government records," voluntarily corrupted themselves and diluted our memory of the past to avoid controversy. But editing a photo and glossing over the fact that many demonstrators turned out to protest Trump is, itself, a political act."
David Perry writes that the National Archives' decision to obscure anti-Trump messages in photos of the Women's March represents a corruption of history and shows how far people in the Trump administration will go to cover for the President, even without him asking.
www.cnn.com