It says they draw data state by state. But in none of the results shown in the article does it give a state by state breakdown. Just national.
The point is that they are telling us how they do what they do. Better than the others. How do we know the others aren’t pulling their responses from NY, CA, NJ, MA, etc.?
I don’t want to give the impression that the election is not based on electoral college votes.
However, there is a historic correlation between a national sample and the state samples.
What this poll suggests is that Georgia, Texas, South Carolina, etc. are simply not going for Clinton.
It suggests that Trump has an excellent chance in all the battleground states.