WATCH LIVE: UFC's Dana White holds a news conference ahead of the championship event being held on the White House lawn this weekend. Read more: https://abcnews.link/C3t2kAP ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G Watch 24/7 coverage of breaking news and live events on ABC News Live: https://www.youtube.com/watch?v=gN0PZCe-kwQ&ab_channel=ABCNews Watch full episodes of World News Tonight with David Muir here: https://youtube.com/playlist?list=PLQOa26lW-