HMM: Full Senate heads to rare classified meeting at the White House on North Korea.

Congressional aides told Reuters that the meeting was originally scheduled to take place at a secured room at the Capitol, but President Trump asked to move the meeting to the White House.

Salon reported that the meeting will occur in the Eisenhower Executive Office Building auditorium. It will reportedly be made into a “sensitive compartmented information facility”—which means top secret information can be shared. The briefing will take place at 3 p.m. ET.

Some aides on the Hill have expressed confusion about the circumstances of the meeting. Salon wrote, “this could be a preparation for war—or just a forced attempt at a pre-100 days photo op.”

The meeting will be attended by some of Trump’s top cabinet members, including Secretary of State Rex Tillerson—who will chair the meeting– and Secretary of Defense Jim Mattis.

The fact of the meeting itself should send a message overseas, but that still leaves the question of which Senator will be the first to leak.