(NewsNation) — Construction has begun on the $250 million ballroom President Donald Trump is adding to the White House, and questions are being raised about the project after demolition began on the East Wing.

Earlier this year, Trump said the addition would not interfere with the current layout of the White House, but things have changed. Now, the organization that supports the preservation of America's historic buildings is demanding an immediate halt to the project.

What is Trump's plan for a ballroom?

The president's plan is to build a 90,000-square-foot ballroom that will hold nearly 1,000 people. It will be constructed where the East Wing, traditionally where the first lady has offices, sits now.

Renderings of the ballroom show a large space decorated in Trump's signature style,

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