The blue wave was powered by modestly affluent suburban voters in places like NoVA, New Jersey, Orange County and the Philadelphia suburbs. Aka, Whole Foods/Harris Teeter territory.
The big story is actually that the DNC was able to flip only a small amount of house seats, instead of the landslide they were expected to get, and also that the DNC lost Senate seats.
What?? 40 seats is huge. The house popular vote is the biggest for any switch of power since we started counting.
Though I should say for the record when someone says “DNC” like this it usually means they learned what the DNC was from the Russia hacks, given the DCCC is mostly in charge of house races and has been increasingly sidelined by small dollar funding and independent PACs like Bloomberg’s.
What is "Whole Foods" territory?
The "Blue wave" flipping 40 congressional seats was the major story of the 2018 election.