Blue wave is not as blue.
Just speculation on my part though. It might be too close to the election day for it to matter even if it came out today.
No, it's probably the inverse.
Making rulings that go against Trump probably energizes republicans to vote in the midterms.
Democrats are basically tapped out in terms of potential midterm voters. The game now is to get swing voters to vote blue (which is what polls are showing) and having republicans feeling complacent or demoralized.