Trump declared the Oval Office a "national monument". New US presidents will not be able to change its face US President Donald Trump defined the Oval Office of the White House as a "national monument". He signed the corresponding document on November 5, two days after Republicans lost the congressional midterm elections. Trump's order still needs to be approved by Congress. If that happens, new US presidents won't be able to make changes to the inside of the Oval Office. Trump himself, after returning to the White House, changed a lot in the presidential residence, including the Oval Room, where many gold decorations were added.