The National Trust for Historic Preservation is charged by Congress with helping to preserve historical buildings. The White House is one of those buildings and a rather uniquely important one.
When President Trump expressed his desire for adding a ballroom to the White House he promised not to interfere with the existing building. Next thing I heard about it, the East Wing of the White House had been demolished.
The nonprofit National Trust for Historic Preservation is now suing. It is too late to prevent the damage that has already been done but may stop further destruction of the White House or other historic buildings.
This is the website of the National Trust for Historic Preservation if you would like to comment or make a donation.