“Divisive‚” “corrupt‚” and “messy.” That’s how Americans described the state of our politics when asked to do so by Pew last year. Other popular answers included “polarized” and “dysfunctional.” Those of us who feel that way may be tempted to tune out this election year. To participate in politics is to encounter many otherwise lovely people at their most upset‚ angry‚ and uncharitable. To withdraw from it is‚ for many‚ to avoid stress‚ annoyance‚ and maybe even negative...