James Hohmann: “Democrats made gains in several of the states that flipped from Barack Obama to Donald Trump. But they didn’t pick up as many House seats as they hoped in Pennsylvania, despite court-ordered redistricting that created a more favorable map. There was additional evidence that Michigan and Wisconsin will be hard fought again in the next presidential.”

“The returns from Ohio, though, were full of warning signs for Democrats. For a very long time, the Buckeye State has been the quintessential presidential swing state — both in deciding the winner and closely tracking with the national vote. But Trump won it by eight points in 2016, and Republicans outperformed expectations.”