James "Jack" Costello files for Schleifer vacancy in 12th Subcircuit

Updated November 27 to add photo and link to campaign website.

James "Jack" Costello, who lost a 2022 bid for a 13th Subcircuit vacancy by a razor-thin margin, has filed this morning for the Schleifer vacancy in the 12th Subcircuit.

Costello's filings with the Illinois State Board of elections provide a link to this campaign website; I have added this link to the Sidebar on this site.

Licensed in Illinois since 2007, according to ARDC, Costello has spent his entire legal career in the State's Attorney's Office. Costello's campaign bio stresses the "wide spectrum" of cases he has handled in the CCSAO, "from DUIs to homicides," and, in recent years "primarily on complex financial crimes and public corruption."

A graduate of St. Viator High School, Costello grew up in Arlington Heights where he still lives, with his wife (also an attorney) and their two children. Costello's campaign bio also notes that he helped create, and now coaches, the Rolling Meadows High School mock trial team. He has lectured about the criminal justice system for Barrington High School, Rolling Meadows High School, and Palatine High School. He has also served as a board member of the Arlington Heights Historical Society.