Demolition crews were tearing down part of the White House’s storied East Wing on Monday to begin building US President Donald Trump’s ballroom, a project he had said would not interfere with the existing landmark. Large construction equipment was seen picking apart the facade of the building, a part of the White House complex that has housed the first lady’s offices, a theatre, and a visitor’s entrance that welcomes foreign dignitaries. The ballroom project is expected to cost upwards of US$250...