Their first hurdle is the Senate. Democrats have 33 up for re-election and 10 of them are from States that voted for Trump. The Democrat from Ohio is up and I know that Sen McCaskill from Missouri is up. Even though Missouri is pretty red she usually she has no problem getting elected. Sen Sherrod Brown from Ohio is up for re-election. I think he is safe. He is actually up there as one of the most progressive Senators but he doesn't come off that way. He has a working man way about him. He often rides the Metro in D.C. He was, believe it or not, an Eagle Scout. The Republicans tried really hard to knock him off the first time he ran for re-election 4 years ago and he was fine.
It has to start at the grass roots, state legislative seats and governorships. Each state is different. I think that the Democrats at the National level have to realize that each state is different. A Democrat in a red state will need to run differently than a Democrat in a deep blue state. Doesn't mean they are somehow traitors they just have to run differently.
Here are a couple of articles on the challenges of 2018
IMO, two things need to happen rightawayquick:
1. the Democratic National Committee needs to get their stuff together and clean their closets, so when it's time, the boots on the ground have worthy political party and viable candidates to champion and promote.
2. finding ways to engage the other 67.5% of eligible voters that did not vote in the 2016 primaries, and get them to the polls in 2018