CHAMPAIGN — Since he took office, Gov. Bruce Rauner has said repeatedly he wants to let Illinois voters decide whether to set up their own local right-to-work zones, areas where union membership and dues would be voluntary. The Republican also has circulated a memo through the Illinois Municipal League encouraging towns to give the idea consideration, which at least two communities outside Chicago — Oswego and East Dundee — have discussed in the last week. Rauner has pitched the right-to-work zones …