Sure thing. I have the author’s personal email - he’s open to any questions - if you are interested. He was on a local talk radio show last week discussing the points in the letter.
I find that, for me at least, it’s more difficult to sort out governor’s positions than a representative’s or a senator’s.
I am easily able to look up how a senator or rep voted, or what they sponsored (at thomas.gov), but as concerns a govenor, there’s much more difficulty (unless, of course, one is from that state and obviously is better able to pay attention/read your own governor’s law signing/vetoes/commutations, etc.).
When you’re an “outsider” you also have no history as to what led up to any particular bill signing or action.
I don’t feel the need to contact your friend, as his letter appears to align itself with other things I have read by others.