President Trump spent part of Christmas Eve bantering with kids about their Christmas lists, updating families about Santa Claus' whereabouts and reminding one child that the big guy has a "serious appetite.

Since then, NORAD has upgraded its Santa-tracking technology by installing Santa cams in space to monitor the jolly old elf, the agency says. "NORAD tracks Santa, but only Santa knows his route, which means we cannot predict where and when he will arrive at your house," a senior NORAD official said in a news release.