Reportedly in the Vice President’s wing. The cable nets are on it. People are being evacuated on the 17th Street side of the building as I write. No injuries have been reported thus far.
Update: The fire is localized in that building, so the White House itself isn’t threatened.
Update: That was quick. DC’s bravest say the fire’s out.
Update: One minor injury reported. But don’t you know, this was just like the Reichstag fire?
Update: Brilliant. “Where there’s smoke, there’s derangement.”