A federal judge has ordered the suspension of a $400 million White House ballroom construction project, ruling it cannot proceed without congressional approval. The decision was made after a preservationist group sought a preliminary injunction.

A federal judge on Tuesday ordered the Trump administration to halt construction of a $400 million White House ballroom after demolition of the East Wing, ruling the project cannot proceed without congressional approval. US District Judge Richard Leon granted a preliminary injunction sought by a preservationist group.