The race is not tightening if you use any sort of robust methodology or look at the better polling. The tightening is almost entirely confined to a group of 3 or 4 pollsters that release a lot of polls and so can dominate polling averages that don't adjust for house effects, etc.

I don't think it's the best use of my time to bat down every dumb theory about why Trump can win ... in part because Trump can win (!!) even though it probably won't be for the particular reasons the theory espouses.

But it's kind of silly season out there right now.