Melania Trump says her adult son Barron, who turns 20 in March, still requires full-time motherly love. “You need to be there for a child nonstop, especially when they need you, especially at that age that Barron is,” Melania said in a Thursday morning interview on Fox Business. Barron is Melania’s only child with President Trump, who has four other children from his previous two marriages. When Trump was elected president for the first time in 2016, Melania and Barron remained in New York City for several months so the fifth-grader could finish the school year at Columbia Prep. It’s unclear how prominently the 6-foot 7-inch heir to the Trump fortune figures into the “Melania” documentary.