There have been several recent articles about the possible win by Rauner and even the GOP taking over the entire Illinois government. This is pure political fantasy.
The Democrats gerrymandered the map just the way they like it, so there will be little movement in the legislature, and while it may be possible for Rauner to win, it is important to remember Big Labor is totally frothing-at-the-mouth against him.
Combine that with recent legislation that allows same day voter registration without an ID, and the opportunity for Democrat/Union mischief is immense. What would stop union Democrats from busing in union members from out of state? Or busing in a bunch of illegals from Texas, signing them up to vote and giving them their voting instructions?
Nothing. And considering this is Illinois, it is entirely likely. Certainly more likely than the GOP taking over the government.