I was wrong when I predicted (here and here) that the Dems wouldn’t retake the House. They did, and in rather convincing fashion. Including three undecided races (two GOP leaders, one Dem leader), the Dems will have gained 39 seats. That’s a pretty good showing by historical standards:
So, was 2018 a “wave election” for Democrats, as many Democrats and pundits expected it to be? I don’t know, and neither does anyone else. “Wave” is vague. (Pun intended.)
But I will say this: If there had been something like a “wave”, the Dems would have retaken the Senate, too. They certainly were in a position to do so, needing only a net gain of only two seats to go from a 49-51 minority to a 51-49 majority. (I’m counting two so-called independents as Dems because that’s how they vote.) But, instead, the GOP added two seats (assuming that Sen. Hyde-Smith of Mississippi retains hers in next week’s runoff), and will open the 116th Congress with a 53-47 majority.
Here’s how 2018 stacks up against previous mid-term results for the Senate:
Why the disparity between the House and Senate in this year’s mid-terms?
If the mid-terms had been a “referendum” on Trump, as often suggested (even by Trump), the House and Senate would have gone in the same direction. They didn’t because the election wasn’t entirely about Trump.
One story is that the Dems gained in the House because of a focus on health care. It is the Dems’ own creation — Obamacare — that has pushed health-care costs and premiums ever higher in recent years. But that matters not to ignorant voters, who are sucked in by promises to “get it right”. Dems are good at making such promises.
The Senate results tell a different story. It was possible for Trump to lend visible and vocal support to GOP Senate candidates in a way that he couldn’t for the vastly greater number of GOP House candidates. So, if anything, the “referendum” on Trump occurred in Senate races, and Trump won.