Wallace is totally despicable and one of MSNBC's worst.
Lowlife Ali Velshi, attacking Trump for earlier tweeting with "bombs" in quotes, and immediately calling "conspiracy theories" involving democrats as outrageous at the end of the press conference. Of course, former FBI profilers on MSNBC posed that as a real possibility.
Probably some building under the control of the Broward Sheriff's Office, or other 'safe location' that is operated by rogue intelligence people.