President Donald Trump speaks on the phone with children as they track Santa Claus' movements with the North American Aerospace Defense Command Santa Tracker on Christmas Eve at the president's Mar-a-Lago estate in Palm Beach, Fla., Sunday, Dec. 24, 2017. less President Donald Trump speaks on the phone with children as they track Santa Claus' movements with the North American Aerospace Defense Command Santa Tracker on Christmas Eve at the president's ... more PALM BEACH, Fla.