Legal Question in Employment Law in Illinois

Unless you're covered by a collective bargaining agreement or other "written" contract, employment is "at will" here in Illinois. That means he can fire you anytime, and you can quit anytime. It also means he can change the job description or duties anytime.... Sometimes employers will start making things difficult (like this) just because they really have another reason to get rid of you but the reason is illegal.... But if you can't clearly identify whether there is another reason that may be illegal (race, gender, other protected classes of people), you may be stuck cleaning and performing other tasks even if they are totally unrelated to what you were supposedly hired for. Other employers simply stop giving disliked employees work until the employee feels guilty about sitting around doing nothing and then quits. It takes all kinds. But if you think there is another reason and it might be an illegal reason, or if you just want someone to ask for you to see what is going on, see an attorney who handles labor and employment cases in your area. Jobs are tough enough to find for a lot of people and many people are just sucking up and doing whatever it is to keep a job if they have one.....

You should tell him that you believe being asked to clean is a substantially different job from the one you were hired to do. If you refuse to do the cleaning, and he fires you, most likely you will qualify for unemployment.