We don't need a new ballroom @ the White House it already has one. Haven't you seen the movie?

[Botany]

Michael Douglas, Annette Bening, Martin Sheen, Michael J Fox, and Rob Reiner can all testify that
the White House already has a ballroom.

BTW Meathead Rob Reiner.

[SunSeeker]

1. Yes, the East Room in the East Wing.

The White House has a large event space called the East Room, which can accommodate about 200 people for a seated dinner.
The new monstrosity will be a 90,000-square-foot ballroom designed to have a seated capacity of 650 people, more than three times the capacity of the current East Room. Gotta make room for all those billionaire donors!

[Botany]

2. Thank You! From the pictures and videos I have seen that room is exquisite.

And if more space is needed they could always have rented more space @ a different venue.

And you are right the ballroom should be called Casa de la Grift.