I am not convinced that Trump will actually build that ballroom.

[drray23]

So far, what we know is:
1) he obviously demolished the east wing
2) There are no drawings/plans that were submitted or apparently available
3) The renderings look like they were produced by an intern using AI
4) 90,000 sq feet is so grotesquely big, it would be barely fit on the white house grounds (see another DUer post on this)
5) The cost estimate of 300 million is many times more per square foot than a building of this size would require

What I think is more likely is that Trump lashed out and decided to level the east wing just because he can.
The donations that those oligarchs made will mostly end up in Trump's pocket.

Come January 2029, we will retake the white house, and the new president will have to deal with the aftermath and fix it.