The luxury hotel Donald Trump has built in an iconic downtown Washington building is set to open. The Trump International Hotel, Washington, D.C., will begin serving guests Monday. There won't be any fanfare around the opening, which is known as a "soft opening.'' Grand-opening ceremonies are being planned for October. The Trump Organization won a 60-year lease from the federal government to transform the Old Post Office building on Pennsylvania Avenue into a hotel. Trump broke ground on the renovation before he entered the presidential race, boasting that it would be one of the finest hotels in the world. After he launched his campaign, two highly regarded chefs backed out of plans to open restaurants in the hotel because of Trump's comments about Mexican immigrants.