Of note, Greenberg disputes the accuracy of labeling of the swing away from Trump in 2018 as due to white suburban women, he thinks it is more important to see and note the white rural and white working class women swing away from Trump. Excerpt:

The Democrats in the 2018 wave election did get it and made their biggest gains, compared with 2016, not in the suburbs — despite winning most of their new seats there — but in the rural areas and among white working class voters, particularly women. This pullback from Mr. Trump among white working class women in particular went further this year. As of 2019, he enjoyed only a single-digit lead with the voters who played such a big role in the 2016 surprise. In 2018, Democrats succeeded by attacking Republicans for attempting to repeal Obamacare and failing to lower skyrocketing prescription drug costs. They proposed trillion-dollar investments in infrastructure and battled to drive dark money out of politics.