“...The polls on him...(anyone)....... are essentially worthless.”..........
Sorry but I don’t put much faith in polls. Poll questions can be, and are easily manipulated to get a desired answer leaning in what you favor. As I have stated many times, the only poll that counts will be the one in November 2016
Sans anything else, it is their ball game and there’s not much we can do about it.
We see the evidence of wildly diverging scores (if you will), so what you point out is obvious.
Still there are some polls that are better than others, even in this environment. Yes they are frustrating, but campaigns are based on them. You can’t just ignore them.
True enough also, that the only real firm polls are the primaries and caucuses themselves.
Even those are gamed IMO.