KANSAS CITY, Mo. — I received a call Saturday morning from some long-time friends in rural Illinois who were on the road with a 15-year-old family member named Nissa, and our conversation turned to the Chiefs. It turns out Nissa is a Swiftie and Chiefs fan, but she started following the AFC champions because of quarterback Patrick Mahomes. The fact that superstar singer Taylor Swift started dating Chiefs tight end Travis Kelce has only solidified Nissa’s fandom. This is just another example of how big the Chiefs are these days. There are few if any media outlets that have not covered the Kelce…