(CNN) - A co-chair of Chicago mayor-elect Rahm Emanuel's transition team resigned from her new post Friday after it was revealed that she left her high-level state job last summer over ethics violations, CNN confirmed Saturday.
Judy Erwin previously served as the executive director of the Illinois Board of Higher Education and served on then-candidate Barack Obama's Education Policy Committee during his 2008 presidential campaign. On Thursday, she was named to Emanuel's transition team and according to a news release, Erwin was also recently hired as managing director for ASGK Public Strategies, the communication management firm founded by former Obama senior adviser David Axelrod.
Read the full decision here.
But a recent decision by the state Executive Ethics Commission says Erwin used her state e-mail account and phone to campaign for Obama, engaging in campaign fundraising activity and using staff resources to help plan her trip to the 2008 Democratic National Convention. The filing states that Erwin stepped down from her position at the Board of Education on August 15.
The news of Erwin's resignation from the Emanuel team was first reported Saturday by the Chicago Tribune. Emanuel spokesman Ben LaBolt confirmed the report to CNN.
"We had not seen the decision," LaBolt said. "Judy Erwin is a friend of Rahm's with a wealth of experience and he'll continue to consult her public policy knowledge."
In an interview with the Tribune, Erwin, a former state representative who also co-chaired Emanuel's congressional campaigns, said she was careless while busy at work, but that she cooperated with investigators. She told the Tribune that neither Emanuel nor his campaign were aware of the issue before Friday.
"The bottom line is the mayor-elect has very important work to do and I certainly don't want to have any distractions," Erwin told the Tribune. "I will be stepping aside from the transition. I don't want any distractions at all."
Attempts to reach Erwin on Saturday were unsuccessful.
The ruling states that a $4,000 administrative fine was levied against Erwin.
"The atmosphere for (Board of Education) employees must have been heavily colored by Ms. Erwin's political activity on the job," the ethics board said.
It also found her explanation that she made a campaign contribution to a state representative who was chairman of the higher education appropriations committee "particularly troubling."
"This suggests that she was responding to a real or imagined pay to play incentive within state government," the decision states.
- CNN's Cody Combs contributed to this report