https://deadline.com/2018/08/midter...btful-says-cbs-news-head-pollster-1202448050/ If there's one thing progressives should learn from two years ago is that even if majority is moving left, it might not mean victory at our system of state/region level score keeping. Beto is very unlikely to beat Ted in Texas. The battlegrounds are still toss ups and needs more focus.
This is kind of what I was trying to tell those who were spinning the presidential election talking about the "majority" voting for Hillary. Sure, the larger number voted for her, but she really just ran up the score in states like NY and California. Overall the vast majority of states went against her. Since people in all parts of the country matter, having overwhelming support of those in just a few places doesn't override everyone else. I still think Democrats take back the house, but Republicans likely gain a few Senate seats.