City Hall officials confirmed that the subpoenas went out but declined to name the aldermen or give any specifics, the Chicago Tribune reports.
One alderman has already been caught up in the federal case against Boender. Alderman Isaac Corothers (29th Ward) is accused of taking bribes from the developer – including $40,000 in home improvements, meals and tickets to a White Sox playoff game – in order to push zoning changes through City Council so that Boender could develop a 50-acre industrial site on the West Side.
Boender pleaded not guilty to four counts of mail fraud, two counts of obstruction of justice, two misdemeanor counts of violating federal campaign finance laws and one count of paying a bribe.
Both Boender and Corothers are set to go to court in March.