"Whether or not a massive ballroom should be constructed is for Congress to decide and is not a matter for Executive self-help," the panel's majority wrote. "Congress has not ceded unfettered authority to the Executive Branch to dramatically redesign, reshape, and reconstruct the White House - the People's House - to fit a particular president's desires." The appeals court placed its ruling on hold for 14 days to allow the Trump administration to appeal to the US Supreme Court. The White House and Justice Department did not immediately respond to requests for comment. The ballroom plan, which the administration has described as necessary for large formal functions and to preserve the safety of the White House, is the grandest of several Trump efforts to reshape central Washington's landscape of government buildings and national monuments.