My point was that your post stated that a swivel wheel trailer isn't considered a double tow. I was pointing out that to make such a sweeping statement might not be the wisest course since it is in fact not necessarily so.
Having a list of states that allow double towing would be wonderful, but since I don't double tow any more I have no real reason to. I would not trust the listings I've seen because they are frequently out of date. According to the DMV's I've asked about swivel wheel trailers, admittedly a very small number, they are considered to be a trailer, not a load bearing part of the original trailer.
The "you" I was referring to in my post was the OP. I have edited the post to make the reference clearer.