Republican push for gerrymandered congressional maps triggers down-and-dirty from new generation – will it work?It was a stirring speech that brought Democrats to tears. “When someone is cruel or acts like a bully, you don’t stoop to their level,” Michelle Obama told them in Philadelphia in 2016. “No, our motto is: ‘When they go low, we go high.’”Fast forward to Ken Martin, chair of the Democratic National Committee, speaking in Chicago this week. “This is not the Democratic party of your grandfather, which would bring a pencil to the knife fight,” he insisted. “This is a new Democratic party. We’re...