The Supreme Court ruled Monday in favor of the Trump administration, permitting construction of the new White House ballroom to proceed without further judicial interruption. The 5-4 decision granted an emergency application that overrides lower court orders halting aboveground work.

The ruling follows an Aug. 21 interim action by Chief Justice John Roberts along similar lines. It allows the project, which replaces the East Wing, to advance amid ongoing litigation.

Preservation groups filed suit last year, claiming the changes violate federal historic preservation laws and require congressional approval. The administration has countered that the work incorporates essential security improvements and falls within existing executive authority.

The order provides no timeline for final resolution of the underlying case. It stands as a clear victory for the administration in advancing the facility.