The poll is pretty much accurate. It doesn’t take into account that us Conservatives hung up on them or said we wouldn’t vote for the republican candidate if he/she wasn’t a conservative.
And then they count that no vote against repubs as a yes vote for dems.
Viola! “Dems win the hypothetical poll!”
You may know more about the accuracy of the poll. I have no way to vouch for its accuracy without the internals. The point I was making that any poll is a snapshot in time of the current reality. There are so many variables and so much time before the 2018 midterms that the polls will change. Of that I am certain.