Javier Yañez, left, and Sen. Celina Villanueva (D-Chicago), right, will face off in the June 28 Democratic primary for the 12th Senate District. [Javier Yañez and Illinois Senate Democrats] 

Sen. Celina Villanueva (D-Chicago) joined the Senate 2020 as the appointed replacement of former Sen. Martin Sandoval (D-Chicago) after he resigned amid a federal corruption probe. Now, she is trying to distance herself from the legacies of Sandoval and former Southwest Side Rep. Mike Madigan (D-Chicago) as she faces a June 28 primary challenge.