National Review’s Eliana Johnson, in writing about Texas Senator Ted Cruz, begins her article this way: To hell with the independents. That’s not usually the animating principle of a presidential campaign, but for Ted Cruz’s, it just might be. His strategists aren’t planning to make a big play for so-called independent voters in the general election if Cruz wins the Republican nomination. According to several of the senator’s top advisers, Cruz sees a path to victory that relies instead on increasing conservative turnout; attracting votes from groups — including Jews, Hispanics, and Millennials — that have tended to favor Democrats;...