Robert F. Kennedy Jr. is finding time among his many duties as U.S. Secretary of Health and Human Services (HHS) to get his sweat on with none other than Maria Shriver's ex-husband, Arnold Schwarzenegger. "Senior's Day, Gold's Gym in Venice," RFK Jr., 72, wrote via X on Thursday, May 14, alongside a selfie of the controversial Trump cabinet member posing with Schwarzenegger, 78, and smiling for the camera. The Secretary of HHS' post comes amid a fury of controversy and criticism surrounding RFK Jr., his anti-vaccination stance and the looming threat of hantavarius.