Because such a meeting is exceedingly rare and held in secure room, it may suggest that very critical information is about to be shared on North Korea.
Via Fox News:
In an unusual move, all 100 senators were invited to attend a classified meeting later Wednesday at the White House to discuss the North Korea and its growing bellicosity.
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.”