Still some races to be decided but let's look at what we have so far.
Democrats win back the House with around 230 seats. Democrats flipped 29 Republican seats and Republicans flipped 1 Democratic seat. Very nice win for the Democrats.
Republicans will win several seats from Democrats -- Missouri, ND, Indiana, probably Florida, maybe Montana. Arizona unknown. Lost Nevada. States that voted solidly for Trump in 2016 ousted Democrats. Very, very nice night for Republicans.
Democrats won back a number of Governorships nationwide but also lost some high profile races in Florida, Ohio, and probably Georgia. A good night for Democrats but not as good as they would have liked.
My predictions were 1) A Democratic take over in the House. (2) Democrats would be lucky to hold the 49-51 margin in the Senate and would probably lose another seat. (3) Beto O'Rourke would lose but not nearly as much as polls had him losing by. I predicted a loss by less than 5 points.
Looks like I was right on all 3 but I underestimated the Democratic losses in the Senate.
What does this mean for 2020? I have no idea.