National Journal: “The Chicago River isn’t the only thing seeing green today as voters head to the polls in Illinois after millions of dollars in outside money flooded the airwaves. Between the open Senate race and four open House races, a state record-shattering $92.3 million has been spent on campaign ads.”“When the cycle is all said and done, the price tag for the Illinois primary will be an important footnote in what’s projected to be the most expensive midterm election ever.”