Tonight may save us from the dastardly tax bill the GOP is shoving down our throats.

[Garrett78]

3. Or motivate the GOP to get it passed.

For what it's worth, here's what Perry Bacon Jr. of 538 wrote a short while ago during 538's live chat:

"Micah, I tend to think politicians do what they will on policy and then justify it later. Democrats, for example, pushed through the Affordable Care Act in 2010, even after Republican Scott Brown’s Senate win in Massachusetts was such a huge political blow to them and suggested that the ACA was unpopular.

Republicans want to do taxes. So I think that GOP leadership will say: “This result shows that we are not getting enough done. We need a win, to prove to our voters we are executing. So we will pass this tax cut.”

My question is: Do GOP members in competitive/swing districts look at this result and conclude that Trump is an anchor around them and backing anything he is strongly for (like the tax plan) is a mistake? I doubt it. I also think we have to emphasize that candidates need donor support to win. GOP donors really want this tax bill passed."