Happy Birthday dad! I love you!?A post shared by Tiffany Ariana Trump (@tiffanytrump) on Michael Cohen is currently plugging his new book “Disloyal: A Memoir” while under house arrest after pleading guilty to eight criminal charges, including lying to Congress and violating campaign finance laws.In the book, released this week, Cohen devotes several pages to Donald Trump‘s forgotten fourth child, Tiffany, who he says was often referred to as the “red-haired stepchild” behind her back by her family members.Cohen claims Trump himself would frequently disparage Tiffany and treat her differently from her older siblings.