"Where you're standing, or sitting right now, is white stone, and that was grass," Trump remarked during Friday afternoon's luncheon. "The problem with it is you couldn't walk on it because this is built on a wetland. The grass was always soaking wet."

A UFC fight at the White House sounds like a spectacle straight out of Hollywood, but it would require one of the most complex security operations ever attempted for a live sporting event. President Donald Trump has already begun hyping the June 14 event,