Can a middle-class progressive Democrat beat a billionaire heir to a hotel empire? That’s the big question in Illinois’ upcoming election -- which could end up being the most expensive state election in American history. On this episode, I talk to Democratic State Sen. Daniel Biss -- a progressive lawmaker who some polls show is running a close race against the heir to the Hyatt empire, who has spent more than $60 million on the primary. Biss argues that Democratic voters face a clear choice in the race -- a choice between siding with the middle class or siding with oligarchy.