WEST PALM BEACH, Fla. -- President Donald Trump marked Christmas Eve by quizzing children calling in about what presents they were excited about receiving, while promising to not let a “bad Santa” infiltrate the country and even suggesting that a stocking full of coal may not be so bad.

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.