The Good Wife Season 2 Episode 4 (The Good Wife s02e04) with title “Cleaning House” aired on Tuesday, October 19th 2010 at 10:00 pm via CBS Network
Here is summary for The Good Wife Season 2 Episode 4 :

Alicia becomes embroiled in an ethics scandal and risks being disbarred. Her trouble also threatens to fatally harm Peter’s campaign. Meanwhile, a third candidate comes forward to run for state’s attorney.