A recent development in Washington has halted a major construction project. A US federal appeals court ordered a stop to construction on a $400 million ballroom project at the White House. The project, initiated by President Donald Trump's administration, has been put on hold.

Details of the court's decision and the project itself are limited in this report. For more information on the court's ruling and the project, readers can refer to the original source, which provides further details on the development and the appeals court's decision.