A president who governed a divided country has much to teach us in a twenty-first-century moment of polarization and political crisis. Hated and hailed, excoriated and revered, Abraham Lincoln was at the pinnacle of American power when implacable secessionists gave...

A president who governed a divided country has much to teach us in a twenty-first-century moment of polarization and political crisis. Hated and hailed, excoriated and revered, Abraham Lincoln was at the pinnacle of American power when implacable secessionists gave...