Sen. Bernie Sanders (I-Vt.) called tech billionaire Elon Musk a “smart guy” and Robert F. Kennedy Jr. “right” about America’s “unhealthy society,” as they prepare to take leadership positions in President-elect Trump’s next administration. In an interview with Business Insider on Tuesday, Sanders listed areas where he could find common ground with Musk, someone he’s previously criticized as a threat to democracy. Musk has been chosen to co-lead Trump’s new Department...