how can i sue

In order to be successful, you must put the employer on written notice that the supervisor called you a racist name. The key to your success is the failure of the employer to address your concern. The comment by the supervisor will not cause the employer to be liable. Rather, the failure of the employer to address the comment by the employer after you have given written notice of the racist comment is the basis for your claim. Please put the employer on written notice about the racist name-calling by the supervisor. Please make sure this conduct is addressed. If not addressed, you will be successful. Please call if we can help