The trappings of family occupy subplots where his
eldest son Robert (Joseph Gordon - Levitt) rages to enlist — his father wants to shield him even as he sacrifices countless unknown
sons — and his
unstable wife Mary (Sally Field) exhausts him with her headaches and heartbreak, even as she turns a Rottweiler's frown upon her husband's opponents.
Lincoln manages to encompass many aspects of the president's last three months: his arguments with his
unstable wife, Mary Todd (Sally Field); his determination to keep their
eldest son, Robert (Joseph Gordon - Levitt), out of uniform; his grief over the recent death of their 11 - year - old
son, Willie, and the thousands of other
sons taken by the war; his magnanimous friendships with the former political enemies who joined his cabinet; and of course his assassination (which Spielberg ingeniously represents with a scene from a children's play).