![Rep. Dan Lipinski, D-Ill., campaigns for re-election in Illinois' 3rd Congressional District at a commuter train station back in 2008.](https://will.illinois.edu/images/uploads/48420/ap_080114046636_wide-21a0581714cb35f10d1595fa316b34e3bd12ad1e-s800-c85__medium.jpg)
Illinois Primary: Democrats Wage Internal Battle, With Big Signs Of Party Enthusiasm
Tuesday's Illinois primaries could bring down the first congressional incumbent of 2018, set the stage for a highly competitive gubernatorial race, and give Democrats challengers against several possibly vulnerable GOP congressmen they're aiming to defeat in order to take back the House.