Chicago Ald. Patrick Daley Thompson was implicated in the plea agreement of a former bank employee who federal prosecutors said played a critical role in the embezzlement scheme. She said millions in theft was covered up before the bank failed.

Former state Sen. Martin Sandoval once headed the powerful Senate Transportation Committee. He now faces up to 13 years in prison on corruption charges involving a controversial red-light camera company.

The former chair of the influential Senate Transportation Committee is the fourth Illinois politician indicted on federal charges amid a sweeping FBI probe.