Halting $400m White House ballroom project is national security risk, Trump officials say

US National Park Service lawyers cite materials that will be installed to make ‘heavily fortified’ facility Donald Trump’s administration is arguing that a judge’s order to halt construction of a $400m White House ballroom creates a security risk for the US president as his team asks a federal appeals court to pause the ruling. In a motion filed on Friday, US National Park Service (NPS) lawyers say that the federal judge’s order to suspend construction of the new facility is “threatening grave national-security harms to the White House, the president and his family, and the president’s staff”. “Time is of the essence!” the lawyers write, citing materials that will be installed to make a “heavily fortified” facility. The ballroom construction also includes bomb shelters, military installations and a medical facility, according to the filing. The ballroom is part of Trump’s plans to quickly remake Washington. US district judge Richard Leon in Washington on Tuesday ordered the temporary pause of the construction project that has included demolishing the White House’s east wing. He concluded that unless Congress approves the project, the preservationist group suing to stop it is likely