Absolutely fantastic result for the Democrats, who have in a single night resolved several issues:
- Can you run moderates like Northam and still benefit from the D anti-Trump wave? Yes, liberals are energized and not exclusionary (at least in Virginia).
- Do Democrats have a chance of winning back the House? Yes, because while Republicans can pull out edges in single-shot special elections, the broad attention of a statewide vote (which all 2018 is)
brings out the Resistance. - Can otherwise establishment Republicans go law-and-order to boost white turnout? Not really, SWVA doesn't trust them, destroys sympathy in NoVA, and boosts nonwhite turnout.
- Are the polls accurate? Yes, and sometimes underestimate the Democrat (see 538's First Rule of Polling Error)
- Can initiatives overcome existing Republican resistance? Sometimes (Maine) but not when the position is highly opposed by existing outside interests (Ohio).
- In 2009 Republicans turn the Virginia House from a 55-43 Republican split to a 61-39 R split. The Dems turned 34-66 to 50-50 this year.
- Could 2018 be brutal for Paul Ryan? Yes.
I'm not sure of the "need to swing rural areas to win the legislature" - didn't the Ds just flip this legislature? Gerrymandering creates lots of seats which are hard to reach but can be hit (you concentrate all the D votes in one area to create margins, not blowouts, for R districts). Doesn't that process combined with a D wave create a lot of uneasy Republicans?