Google’s Eric Schmidt, Facebook’s Sheryl Sandberg, Tesla’s Elon Musk and Groupon co-founders Brad Keywell and Eric Lefkofsky have all donated to Mayor Rahm Emanuel’s campaign. Donations from Silicon Valley and Chicago’s tech community add up to more than $1 million. WBEZ’s Chris Hagan has been reporting about the mayor’s relationship with those donors and he joins us in studio with more.