This Moment of the State of the Union Just Lost the Democrats the Midterms - Matt Margolis

And Trump noticed.
...But nothing cut deeper than one specific challenge he laid down for every lawmaker in that room.

"One of the great things about the State of the Union is how it gives Americans the chance to see clearly what their representatives really believe," Trump said. "So, tonight, I'm inviting every legislator to join with my administration in reaffirming a fundamental principle. If you agree with this statement, then stand up and show your support. The first duty of the American government is to protect American citizens, not illegal aliens."

Republicans exploded. They stood, clapped, and whistled for a solid two minutes...
Democrats didn't move.
Not a shuffle. Not a courtesy clap. Nothing.

• Trump let their refusal to stand do the work for a moment.

Then he turned the knife.

"Isn't that a shame? You should be ashamed of yourself, not standing up," he said.

Oh, but he wasn’t done.

He kept going. 

"That is why I'm also asking you to end deadly sanctuary cities that protect the criminals...