Construction of a project at the White House can proceed for the time being. A temporary order allows work to continue while an emergency appeal is considered. The project's cost is around $400 million. This order overrides a previous ruling that required work to stop due to a lack of Congressional approval.

The administration claims the president has authority to make changes to federal buildings. National security concerns are also cited as a reason for the project.

Further details about the project and the appeal are available from the source.