A president who governed a divided country has much to teach us in a twenty-first-century moment of polarization and political crisis. Abraham Lincoln was president when implacable secessionists gave no quarter in a clash of visions inextricably bound up with money, power, race, identity, and faith. He was hated and hailed, excoriated and revered. In Lincoln we can see the possibilities of the presidency as well as its limitations. At once familiar and elusive, Lincoln tends to be seen in popular minds as the greatest of American presidents--a remote icon--or as a politician driven more by calculation than by conviction. This illuminating new portrait gives us a very human Lincoln--an imperfect man whose moral antislavery commitment was essential to the story of justice in America. Here is the Lincoln who, as a boy, was steeped in the sermons of emancipation by Baptist preachers; who insisted that slavery was a moral evil; and who sought, as he put it, to do right as God gave him light to see the right.