A visit from President Bush, a suburban congressional debate, and a scandal involving a top fundraiser for Governor Blagojevich topped local TV newscasts yesterday. But a new study says that's the exception not the rule. We'll explore how local tv news is leaving voters behind. Plus, the state of black arts in Chicago; the mystery of Del Close's skull; our Dueling Critics find a “Dead End”; musicians trade their instruments for turntables; and playwright David Mamet reflects on his Chicago roots.