The Supreme Court ruled 5-4 on Monday that construction of the White House ballroom can continue, lifting a block on above-ground work as President Trump asserts the project is necessary for national security. It halts a lower court ruling that would’ve restricted construction until Congress provided additional approvals. Five of the court’s conservative justices, including all three of Trump’s appointees — Justices Clarence Thomas, Samuel Alito, Neil Gorsuch, Brett Kavanaugh and Amy Coney Barrett — sided with the president. They ruled a preservationist group likely has no right to sue over one of its members’ concerns about the project. Chief...