WASHINGTON — President Trump did not waste any time Sunday night congratulating the Kansas City Chiefs for defeating the San Francisco 49ers in the Super Bowl.

Except he got their home state wrong.

“Congratulations to the Kansas City Chiefs on a great game, and a fantastic comeback, under immense pressure. You represented the Great State of Kansas” — yikes — “and, in fact, the entire USA, so very well,” Mr. Trump said in a tweet posted during his Air Force One flight from Palm Beach, Fla., to Washington. “Our country is PROUD OF YOU.”

The problem, of course, is that the Chiefs play in the state of Missouri, next door. There is a Kansas City, Kan., a handful of miles away, but it was the kind of mix-up his followers might expect a member of the coastal elite to make, not a president who spends much of his time speaking on behalf of people from that part of the country.