I am not obsessing over D/R/I to skew or unskew anything.
My argument is simple: If the election ends up with a D+5 sample, Hillary! wins. If the consensus gets the electorate to around D+2 or D+3, Trump wins. It's really that simple. I am not concerned as much with breakdowns for sub-groups, etc. as they roll into that number at the end of the day.
Basically, this election will be about Trumps strongest base - NON-college-educated Whites, that stand for 30% and had very low turn-out 57% (vs 77% amond college-educated Whites).
If he'd trully energizez them to go and vote, he might win.