Article continues below advertisementDonald Trump's youngest daughter and eldest grandchild are facing backlash for attending a UFC fight while the Iran war affects U.S. citizens. Tiffany Trump shared photos from the event held in Miami, Fla., on Saturday, April 11, that showed her posing alongside the 79-year-old president, husband Michael Boulos, sister Ivanka Trump, Ivanka's 14-year-old daughter, Arabella Kushner, and U.S. Ambassador to India, Sergio Gor.The first snap included in the April 13 Instagram post depicted Tiffany, 32, posing with her fists up next to niece Kai Trump,18.