What will help Republicans unite this difficult coalition is packaging an anti-establishment temperament and policy agenda in leaders of strong character. With Donald Trump out of office, Republicans now face the difficult balancing act of retaining new voters he brought into the party while bringing back voters he alienated. Remarkably, Trump brought former Democrats and union workers and minorities into the GOP. He also oversaw some bleeding in the suburbs. To stop the tide of illiberal cultural leftism, Republicans can’t afford to write off either group. I don’t know what degree of political involvement Trump will have going forward. I...