The centerpiece of J.B. Pritzker’s campaign for Illinois governor is helping the middle class raise its standard of living by putting more cash into its pockets. The billionaire Democrat spent almost 40 minutes in a phone interview with the Northwest Herald Editorial Board on Friday talking about the path he believes will take him there. Pritzker touched on the idea of a graduated income tax system that would raise taxes for rich people such as him and his Republican opponent, incumbent Gov.