Even in deep blue Illinois, the Democratic wave that surged through the U.S. in Tuesday’s midterm election led to big wins for the party at the state level. 

With eight races still too close to call on Wednesday, Democrats have already flipped seven General Assembly seats and are threatening to upend several more Republicans, including one of the longest tenured senators in Springfield. 

The party’s victories expand its vetoproof supermajority in both chambers. Here’s a recap of every seat that flipped and other notable races: