For 30 minutes of prime time on broadcast and cable outlets last night, Barack Obama made what was inevitably called the "closing argument" of his presidential campaign. It featured a retiree cheated out of his pension, an elderly couple faced with high medical bills, a widow concerned with her kids’ education and a couple looking at layoffs from a Ford automobile factory. Obama promised to help them all. What did it say about his view of the country and possible role in the White House? Michael Lind, senior fellow at the New America Foundation, is author of The American Way of Strategy.