Ultimate Fighting Championship match Saturday at Madison Square Garden.An avid UFC fan, Trump entered the arena to a loud ovation before the featherweight fight between Diego Lopes and Pat Sabatini. He was accompanied by Kid Rock, Tucker Carlson, Dana White and son Don Jr.Arena cameras panned to him — and in the background Hill, 54, can be seen raising her middle fingers at his back as she sits in her seat.Trump, 77, seemed utterly clueless about the gesture as he continued to scan the room.