Actually, the full quote is: ""... it is just wonderful to be back in Oregon, and over the last 15 months we've traveled to every corner of the United States. I've now been in fifty .... seven states? I think one left to go. One left to go. Alaska and Hawaii, I was not allowed to go to even though I really wanted to visit but my staff would not justify it."
So, technically, he believes there are 60 states, when adding Alaska and Hawaii back into the mix.
OY!! This man is as dumb as dirt.