LOL!!! For the record, I believe he alluded to 57 U. S. States.
Better update your records.
"I've now been in 57 states -- I think one left to go." --at a campaign event in Beaverton.
57 + 1 =58.
People get these things confused, and the soundbite (57) gets accepted as 'truth'.
For instance, the concept of 72 virgins for Muslims. That isn't correct either.