President Donald Trump’s plan to build a 90,000 square-foot, privately-funded ballroom next to the White House has been mired in political and legal quagmire. (Image credit: Getty Images)But a federal appeals court ruled Friday that construction on the ballroom site cannot continue without direct congressional approval. ‘Each President is a temporary tenant, not the owner, of the White House and its Executive Residence,’ the court wrote. ‘From the beginning, our position has been clear and consistent: the law states that only Congress can authorize the construction of a ballroom at the White House.’ President Trump presents a revised design of the White House ballroom aboard Air Force One in March.