Various articles during this campaign -- including some in Salon -- have attempted to tie Democratic presidential candidate Barack Obama to that outdated vision of the Windy City. But over the past 25 years, Chicago politics has evolved. The city is still divided along racial lines, and other layers of government here -- from the Illinois Statehouse to the Cook County government -- feature as much grandstanding and as many ad hominem attacks as anywhere. But anyone who doubts that a toxic political environment can be overcome should look to Chicago. Consensus has become more conspicuous than conflict. Deal-making is more important than showboating. In short, the city's politics has become post-partisan. It's a concept that should be familiar to anyone who has followed Obama's presidential bid.