Like Chicago’s downtown on St. Patrick’s Day weekend, a river of green has flowed through TV sets ahead of Tuesday’s primary vote, as governor candidates have spent tens of millions of dollars on advertising during the long campaign.

 

The frenzied final weekend of in-person campaigning supplements the nearly $65.7 million spent by governor candidates and interest groups on TV commercials so far. The contest could become the most expensive race to be Illinois’ chief executive in state history.

 

That TV spending total -- in just the primary -- is more than the record $65.3 million Republican Gov. Bruce Rauner spent on his entire 2014 campaign.

 

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