What is this new structure in front of the White House?

[Radar]

The first idea that came to my mind is a place for public execution.
You don't go to prison for crimes against humanity and treason. Is that why President Trump, the greatest President in United States history, changed the law to allow firing squads again?  

[J.J.Gibbs]

In case you missed it, Big House posted this in the Shout Box:


BigHouse3232: It a press viewing stage multiple levels. As if Trump will make a big announcement aka National Emergency Service..... you can watch it here. www.earthtv.com/en/webcam/washington-white-house/live-stream

[OmegaMan]

This guy took some fairly close-up video; it starts at about the 20 minute mark.

MustangMedic live from the White House January 29, 2021 reporting on the ground

[Shiloh]

Funny how there is no info anywhere on what it exactly was used for. It wasn’t for the media, but.I guess whatever they used it for is over and done with now. Somoeone in the comments said it's so holograms can be effective against the background because 
apparently he works on theatrical sets.  

Another person said there was a post on Instagram where Clinton, Obama, and Bush were all standing six feet apart and when Obama spoke there was a glitch and he looked like a hot dog.