Abraham Lincoln, born 202 years ago today, saved the Union and helped Americans closer to realizing the promise of our Declaration of Independence. From my long shelf of books about him, I especially recommend "Vindicating Lincoln" by Krannawitter, "Redeemer President" by Guelzo, "Crisis of the House Divided" and "New Birth of Freedom" by Jaffa, and "Abraham Lincoln: Theologian of American Anguish" by Trueblood.