President Trump signed a piece of marble commemorating the White House helipad project, joking that he wanted to make sure everyone could see his signature on t

President Trump signed a piece of marble commemorating the White House helipad project, joking that he wanted to make sure everyone could see his signature on the new South Lawn installation. [▻](https://video.twimg.com/amplify_video/2090104955520598016/vid/avc1/1280x720/0ck3ufkvAhk8vEuj.mp4)