Will Lamb win?!

[Aegon]

It doesn't matter if Lamb wins in the district that no longer exists. The fact that it's this close is a win for the Dems. I've heard GOP strategists are a bit worried (but midterms after a presidential election almost always favor the opposing party)

Not when you look at the balance of power of all three branches since Reagan. 

The GOP ON AVERAGE since Reagan, have held more power when it comes to the House and Senate and SCOTUS. The GOP nationwide also has more state governorships in that time on average. 

It does no good to flip one house of congress or even both if we lose in another 2 or 4 years. The GOP thinks long term and nationwide and that is why they have held a longer average overall. 

It is not as equal as your post would imply. It isn't just a matter of flipping seats, it is also a matter of gaining and keeping seats long term. It is also a matter of paying attention to all elections local, state and not just congress or presidential.

Look at the history of midterm elections. Congress is literally always majority held by the opposing party (not the presidents party), even post-Reagan. If not in their first term certainly by their second. When a new president comes in of a different party it flips. This will most likely to continue to be true this November. That's what I was saying.