From Real Clear Politics

Real Clear Politics is based in Chicago and from their editorial content it is clear that they lean Dem. I do believe they do an honest job presenting polls as they are.

Nevertheless they published this article entitled 5 reasons the Repubs could win the House.

I found the article quite plausible.

Link: https://www.realclearpolitics.com/articles/2018/10/22/five_reasons_republicans_can_hold_the_house.html