The constituency that Pelosi is most indebted to for her Speakership is affluent suburbanites. She's the Speaker because of their voting patterns in 2018, and she needs them again in 2020. That's the constituency the House Dem Caucus is legislating for https://www.bloomberg.com/opinion/articles/2020-05-24/democrats-have-become-the-party-of-upper-middle-class?utm_source=url_link

This also helps explain why Russiagate and impeachment were such huge legislative priorities after Democrats won control of the House in 2018. Those issues animate the highly activated, obsessively anti-Trump left/liberal activist demographic in affluent suburban constituencies

A recent article from American Affairs editor Julius Krein touches on a related theme ( https://americanaffairsjournal.org/2019/11/the-real-class-war/). It should be read as supplementary to our article on the failure of the Bernie campaign ( https://americanaffairsjournal.org/2020/05/first-as-tragedy-then-as-farce/)

Conservatives are often better at analyzing trends in left-liberalism than left-liberals themselves, because one of the defining characteristics of left-liberals is being in a constant state of self-denial

Krein also skewers modern conservatism in his article, just in case one of the prerequisites for you to consider reading is equal opportunity skewering