Getty Images Donald Trump shed light on his workout routine and started beef with Robert F. Kennedy Jr. before asking a child if they could "take [him]" in a fight during an address at the White House. On Tuesday (May 5), the 79-year-old president hosted a group of young athletes and more to announce the return of the Presidential Physical Fitness Award, a form of fitness testing to be used in schools. In his remarks, he referenced himself several times. Trump made a joke about his personal workout routine.