UPDATE: Trump speaks.

Law enforcement asked everyone to leave the event.

First Lady, Vice President, all Cabinet members safe. His words: "perfect condition."

A White House press conference is scheduled in 30 minutes.

This is the most important thing to watch right now.

What Trump says from the briefing room will be the first official, on-camera account of what actually happened tonight.

Suspect is in custody per Secret Service.

Motive unknown. Details still emerging.

Do not speculate. Do not share unverified claims.

Watch the briefing. That's where the real information will come from.

We'll update immediately after.

#BreakingNews #Trump #WhiteHouse #SecretService #Correspondents