NORAD, a joint USA and Canadian command responsible for aerospace and maritime control and warning missions, is "on duty 24/7, 365 days a year...committed to protect the citizens of both our countries", the agency said in a statement.
You can visit this website to check where Santa is at any point of the day today! And if you are driving a GM vehicle, you can ask OnStar where Santa is on December 24, and get live updates as you're driving around.
I have absolutely no idea why this tradition exists or how it is facilitated, but apparently kids ring the President on Christmas Eve.
Photos posted on Twitter by Trump show the pair answering phone calls from children trying to track St. Nick. After listening, Mr. Trump said, "Because at 7, it's marginal, right?" Trump said when answering one call.
The program wasn't affected by the U.S. government shutdown. "Who's with you?" he asked another young caller.
"Typically it's children of course, but we get folks of all ages", Hillier said.
It can also read Christmas stories and if you're using the new Google Home Hub then you'll get festive imagery too.
For more than 50 years, NORAD and its predecessor, the Continental Air Defense Command (CONAD) have tracked Santa's flight, and the big guy in red has already had a very productive 2017 Christmas Eve.
According to the North American Aerospace Defense Command (NORAD), Santa's sleigh is "a versatile, all-weather, multi-purpose, vertical short-take-off and landing vehicle".
Mrs. Trump later tweeted that helping children track Santa "is becoming one of my favourite traditions!"
The radar system used to track Santa and Rudolph is the North Warning System. The site features Santa's North Pole Village, which includes a holiday countdown, games, activities, and is available in eight languages: English, French, Spanish, German, Italian, Japanese, Portuguese, and Chinese.