Meanwhile, members of Congress are asking for details about the incident, which was first reported by NPR.

The cemetery official tried to prevent Trump staffers from filming and photographing in a section where recent U.S. casualties are buried, a source with knowledge of the incident told NPR.

A federal judge allowed Arlington National Cemetery to remove a century-old Confederate memorial one day after blocking the removal over a report that gravesites were disturbed.

A group filed suit saying that the removal of the memorial was disturbing surrounding graves. A federal judge ordered workers to stop and scheduled a hearing for Wednesday.

While ceremonies are held at the tomb almost every day, this is the first time since its creation in 1921 that members of the public have been allowed to walk on the plaza to pay their respects.