WATCH: President Trump signs the final steel beam for the White House Ballroom, adding his name alongside the signatures of workers who helped build the project

WATCH: President Trump signs the final steel beam for the White House Ballroom, adding his name alongside the signatures of workers who helped build the project. [▻](https://video.twimg.com/amplify_video/2118043885666508800/vid/avc1/1280x720/86aHw90qJPuPBZ8O.mp4) https://video.twimg.com/amplify_vi…