[...] How can Democrats maximize their chances? First, they need to get the basics right. They should target widely because it’s impossible to know where the floor is for Trump. They don’t want to be in a situation where new terrain opens up and they’re unprepared. They need to start winning back state-level and county-level positions that feed into higher office. They’ll need money and an aggressive recruitment strategy to get good candidates to run. But, ultimately, the 2018 election, like all others, will be determined by who shows up. The Democratic Party must make a concerted effort to target the voters who have voted in presidential elections but stay home during the midterms. [...]