Gravis (Nov. 6) national poll: Sanders beats Trump by 12, Hillary only by 2

[Person Man]

Pretty major caveat on this: I tend to think there's a lot of people who routinely claim they totally would vote Democratic, if only they'd nominated someone else, but don't.  I think you saw the same thing in polling during 2008.

I bet it is usually 2-3% of the vote but this year it could have been as high as 5% of people who want to pull the D lever but always find an excuse to pull the R.