If the Republicans are the only ones who have it, it makes sense why it hasn't come out yet. But would that really be the case? Seems to me like the Dems might have gotten hold of it too, in which case Hillary would have made it public by now.
Let's hope that it exists and that the GOP has it, because that'll be the end-all. But like Barack said, attacking his wife is a low blow. Just like attacking his associations, advisors, policies, voting record, historical knowledge, etc.