I should add, I have no idea who's going to win. Beware of those that think they do. Too many things can give skewed impressions, such as conservative voters voting early and so on. On a forced choice, my guess would be Labor by a bee's tossle but things could easily go the other way. Only one sure thing and that is that the Greens will have the balance of power in the senate, regardless of how one may feel about that.
