Finally. Election Day. And something is happening across the land. It started as a low grumble and has grown to a yuge roar - like in Les Mis. But for today I’ve selected a different, homegrown anthem from an unlikely source.Whiney little liberal weeny that he is, the thing about Paul Simon is that when he was young he wrote songs that seemed quite knowing…wise, even. He exhibits signs of being afflicted with a Benjamin Button type of disorder: he grew wise backwards.“An American Tune,” written in 1973 in the midst of the divisive Vietnam War, still perfectly captures the...