Chicago Ald. Willie Cochran (20th) is reportedly under federal investigation over his use of campaign funds.

The Chicago Tribune reports that the feds are looking into whether the funds were used for personal expenses. Since 2011, the South Side aldermen has received $131,000 from his campaign fund.

State records showed that Cochran made 70 revisions to his campaign documents from January 2015 to July 2016, up from just six over the prior eight years.

The records showed that Cochran sometimes took up to two years after filing campaign finance documents to report the payments to himself.  

By law, candidates are allow to be paid from their campaign fund for election-related work. However, such a practice is uncommon and candidates typically don't receive such large payments relative to their contributions. 

The South Side alderman says he has done nothing wrong. He told the newspaper that investigators had not approached him.