I used to pay more attention to elections, including House races. I even raised a lot of money for them from you, dear readers! I admit I got a bit fed up eventually. One reason is that trying to win in a relatively red district often necessitates supporting someone who isn't exactly liberal (I still think this is less true than people think, but that's how it works in practice). The other is hearing enough stories - and occasionally experiencing it firsthand - about how horrible the DCCC is. They recruit horrible candidates even in blue districts and nudge better ones out. And then lose and we all wonder why!
The Dems are still bad at this game. I don't know what incentives they need to make them better.