TYB!
>Mankato (MKT) has short runway
Could well be.
Wasn't able to find spec's on req. runway length for the VC-25, but an article about Lehigh (ABE) indicates that the 6600 ft of grooved concrete at MKT might indeed be on the short side.
https://skyvector.com/airport/MKT/Mankato-Regional-Airport
POTUS talking about the US Postal Service reminded me of this article I came across just today:
https://www.zerohedge.com/crypto/usps-just-filed-patent-blockchain-based-secure-voting-system
Not sure what POTUS or the USPS are up to (if anything), but sounds like there might be plans to give it some new importance.