CHICAGO (CBS) — Just two days after choosing his successor in the Illinois House, former state House Speaker Mike Madigan said state Rep. Edward Guerra Kodatt should step down.

In a statement, Madigan and Ald. Marty Quinn (13th) said, “After learning of alleged questionable conduct by Mr. Kodatt, it was suggested that he resign as state representative for the 22nd District. We are committed to a zero tolerance policy in the workplace.”

READ MORE: DCFS Head Could Be Held In Contempt For Not Answering Questions About Kids Stuck In Psychiatric Facilities

They were not more specific about the conduct.

Kodatt, 26, won 63 percent of the weighted vote to fill the 22nd District seat in the Illinois House of Representatives. Madigan selected him as successor on Sunday.

Madigan had the largest share of the weighted vote.

For the past four years, Kodatt has worked as infrastructure manager for Quinn.

READ MORE: Mexican Independence Day Celebrations Could Bring More Gridlock Downtown: 'The City's Got Some Work To Do To'

Madigan resigned his seat as a state representative this past Thursday, little more than a month after surrendering the gavel as Speaker of the Illinois House.

Madigan also resigned Monday as chairman of the Illinois Democratic Party.

Madigan lost his seat as Illinois House Speaker only after he was implicated last year in the sweeping ComEd bribery scandal.

“It’s no secret that I have been the target of vicious attacks by people who sought to diminish my many achievements lifting up the working people of Illinois. The fact is, my motivation for holding elected office has never wavered. I have been resolute in my dedication to public service and integrity, always acting in the interest of the people of Illinois,” Madigan said in a statement.

MORE NEWS: 'Get Vaccinated': McHenry Co. Husband Of Mother In COVID-Related Coma After Giving Birth

Despite Madigan’s nearly 40-year reign as Speaker, during which he became seen as the most powerful politician in the state, it had appeared certain for weeks he would not get another term, after 19 House Democrats announced last year that they would not vote to re-elect him due to the ComEd scandal, leaving him short of the 60 votes he needed.

CBS 2 Chicago Staff