You are probably acquainted with the old saw, “you always fight your last battle”. In the case of politics, the last “battle” saw every poll prediction turned on its head, and a night of nothing but jaw-dropping shocks. Thus, people assumed 2018 would be like 2016, and they laughed at the polls.
Well, as the results clearly show, the polls were 100% right. In fact, you might as well have predicted the outcome in JULY, since it’s exactly, precisely, and spot-on what the pollsters and oddsmakers predicted: a Democratic House, a Republican Senate, and nothing particularly earth-shaking on the national scene.