I'm no expert on Illinois politics, but the chatter I pick up suggests that Rauner did poorly on primary night.
Democratic House Speaker Mike Madigan certainly claims that this is the case, and though Rauner's office has already issued a rebuttal, it isn't very convincing.
Rauner funded a challenger to Democratic House Speaker Mike Madigan, Jason Gonzales. Gonzalez lost handily.
Rauner funded an incumbent democrat, Rep. Ken Dunkin, who had broken ranks with the democratic leadership and lost to his democratic opponent, Juliana Stratton.
Rauner funded Bryce Banton, an opponent to an incumbent Republican, Sen. Bruce McCann, who has broken ranks with Rauner to support a bill that would require binding arbitration in the event state employee unions can't reach agreements with management. McCann won.
Rauner didn't lose everywhere. In an open House district, Rauner's favored candidate, Brad Halbrook, defeated Jim Acklin, who had been backed by former Republican Governor (and Rauner critic), Jim Edgar.
Informed comments adding to this report (or subtracting) are particularly welcome . . .