President Trump discussed with kids Wednesday Santa Claus' Christmas Eve journey being followed through the North American Aerospace Defense Command's (NORAD) tracking program during calls that were peppered with joviality and banter.
The big picture: First lady Melania Trump also took part in the calls from their home in Palm Beach, Florida, which helped kick off the NORAD Santa-tracking tradition that's now in its 70th year. Less traditional were some of the president's comments to the children during the calls.
It's getting harder to find Rudolph playing reindeer games — and researchers say climate change may be to blame.
The big picture: The declining reindeer population isn't just worrying Santa. They're a crucial part of the life force for communities in Arctic areas, and they promote ecological diversity by feeding on some plants and influencing how others grow.