A 1980 opinion from the 5th U.S. Circuit Court of Appeals supported Colleen A. Keegan’s argument that she was deprived of her right to due process when a DuPage County judge instructed her to not discuss her testimony with her attorney during a gap of nearly 100 days between when she started and finished testifying in support of her request for maintenance from her ex-husband.On appeal from a judgment that denied her petition, she cited Potashnick v. Port City Construction Co., 609 F.2d 1101 (5th Cir. 1980).The district …