These questions are answerable. The woman reportedly filed an incident report with military authorities before declining to press charges. Arlington is managed by the Army via the Office of Military Cemeteries. The Senate and House Armed Services committees have oversight jurisdiction here. Senator Tim Kaine and Representative Gerry Connolly, both Democrats of Virginia and respective members of those committees, have called on the Army to provide the report and release more information.
What’s more, Senate Armed Services Committee staff have been directly communicating with Army officials about the incident, and are in the process of seeking and receiving the information in the report and about what happened, a congressional aide tells me. Meanwhile, senior House Democrats are privately pushing Army officials to say more clearly what laws or regulations they think may have been broken, and to reveal more details about what happened, another aide says, noting that Democratic staffers are encountering resistance, leaving them frustrated.
Some Democrats might be skittish about taking this on, given that Trump is pretending the episode was only about honoring the wishes of relatives of the fallen. It’s clearly true that these relatives wanted Trump there, and because of these very real sensitivities, you can see why the Army is trying to deescalate this standoff.
