I just watched the DVD Broken City, which is the story of a corrupt mayor of New York City. Though it is set in the year 2012, there's some reason for thinking that the filmmakers had Rudy Giuliani in mind when they made it. In the film, during a political debate, the mayor boasts of how he has been fixing the broken city of New York. Strangely enough Giuliani had written an article in which he boasts of saving the broken city of New York. In the film we discover that the mayor has a secret partnership in a demolition company and is using his position to generate business for it.
What's interesting is that Giuliani was the person responsible for approving the contracts for the demolition companies that hauled away the steel of the WTC buildings after 9/11. That makes him responsible for destroying evidence at a crime scene. If it turns out that - like the mayor of "Broken City" - Giuliani also had a secret partnership with a demolition company, then he might be guilty of other crimes, as well.