Nebraska Democrats on Tuesday night maneuvered toward a favorable matchup in a high-profile Senate race and were locked in a close primary contest for a battleground House seat that could be important to the party’s hopes of regaining control of Congress this fall. In West Virginia, meanwhile, Gov. Patrick Morrisey’s effort to mete out Trump-like retribution against political opponents in Republican primary races met some success. Here are four takeaways from the night. Democrats can play hardball, too. Democratic voters have been urging the party to pull out all the stops in opposing President Donald Trump and the Republican Party, which has pursued aggressive and unorthodox strategies — like mid-decade redistricting — to hold onto power. Democrats have responded with their own gerrymanders. And in Nebraska, rather than back a doomed Democratic bid for Senate, party leaders played smart, endorsing Dan Osborn, an independent candidate who stands a better chance of defeating Sen.…