In our previous post, we looked at political polarization in economic expectations based on county-level results in the 2016 presidential election. In this post, we analyze how expectations leading up to and following the 2018 midterm elections evolved based on how districts voted in the House of Representatives elections. Do we see a similar post-election change in political polarization of beliefs when comparing congressional districts in which a Republican won in 2018 with those won by a Democrat? Were observed changes in expectations leading up to the 2018 elections systematically different in areas where the election resulted in a change in the party holding the House seat? We show that economic expectations deteriorated notably between the 2016 and 2018 elections in districts that switched from Republican to Democratic control, compared to districts that remained Republican.