Christopher G. Kelly also pleaded guilty on Friday to illegally structuring financial transactions in an effort to hide them from the federal government. The indictment against him did not touch on politics.
Kelly is a roofing contractor and consultant. He has helped to raise millions of dollars for Blagojevich's campaign and he could give federal prosecutors an inside look at the workings of the governor's administration.
Blagojevich has been charged with using his position to get personal and professional favors, including trying to sell off the U.S. Senate seat left vacant by President-elect Barack Obama.