Right up there with such shining jewels as Toronto, Detroit, and Dubai, right? Let's cut straight to the chase, did you literally copy this out of an astroturfing script, or are you just a Chicago native who doesn't want to admit to reality?
"I take offense at claims that we are corrupt! I mean, sure, no one denies we ARE corrupt, but we're not as corrupt as we USED to be! And other places are corrupt too, which is somehow relevant, right?"
He is a "Chicago politician" in the sense that he built the entire foundation for his poltical career in Chicago, and all the major groundwork for his Senatorial and Presidential elections ultimately stemmed from his network of contacts and support built up over a couple decades within and around Chicago - not in the sense that he ever filled a city office there.