‘Shakespeare in a Divided America’ considers the tug-of-war over the Bard

James Shapiro has made a career of writing books about Shakespeare, including “Contested Will: Who Wrote Shakespeare?” (2011) and the prize-winning “The Year of Lear: Shakespeare in 1606” (2015), which were slanted toward the academician. In his latest book, “Shakespeare in a Divided America: What His Plays Tell Us About Our Past and Future,” he concentrates